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COMIC BOOK
GRADING GUIDE
Accurate grading protects both buyers and sellers. This guide covers every standard grade from Gem Mint to Poor, with CGC numeric equivalents, physical descriptions, acceptable defects, and practical tips for listing your books.
🔍 SIX AREAS TO INSPECT BEFORE GRADING
📐 Spine
- ·Stress lines
- ·Creases
- ·Rolling
- ·Splitting
- ·Colour breaks
📌 Corners
- ·Blunting
- ·Creasing
- ·Colour breaks
- ·Folding
- ·Missing pieces
🖼 Cover
- ·Soiling
- ·Staining
- ·Creases
- ·Tears
- ·Writing
- ·Tape
📎 Staples
- ·Rust
- ·Popped
- ·Replaced
- ·Rust migration to pages
📄 Pages
- ·Colour (white → brittle)
- ·Brittleness
- ·Staining
- ·Missing pages
- ·Tears
- ·Loose centrefold
✍️ Writing
- ·Name stamps
- ·Subscription labels
- ·Price writing
- ·Colouring
- ·Pencil/pen marks
GEM GRADE
Virtually unhandled — presentation copies and top-of-census slabs.
CGC 10.0
Gem Mint
Absolute perfection. No manufacturing defects, handling, or imperfections of any kind.
VS NM PRICE
~NM
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Flat, bright, perfectly centred cover. Spine is tight and supple with zero stress lines. Corners are sharp to a needle point. Pages are white and fresh. Staples are original, bright, and rust-free.
✓ ALLOWED DEFECTS
- ✓Imperceptible printing imperfections only
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Any colour break on spine
- ✕Any corner blunting
- ✕Any staple discolouration
- ✕Any page yellowing
💡 SELLER TIP
Practically impossible to achieve from a read copy. If you think a book is GM, submit to CGC — don't list it raw at this grade.
CGC 9.9
Mint
Nearly perfect with only the most minute printing or handling imperfection visible.
VS NM PRICE
~NM
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Square, flat, and bright. Spine shows at most one tiny stress line invisible at arm's length. Corners are nearly pointed. Staples perfectly centred, no rust. Pages white to off-white.
✓ ALLOWED DEFECTS
- ✓One very small, inconspicuous stress line on spine
- ✓Infinitesimal corner blunting
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Any colour breaks
- ✕Multiple stress lines
- ✕Any cover stains
- ✕Rolled spine
💡 SELLER TIP
If you can see the flaw from across the room, it's not Mint. Very few raw copies legitimately grade 9.9.
CGC 9.8
Near Mint / Mint
The most common "perfect" slab grade. Extremely sharp and clean with virtually no handling defects.
VS NM PRICE
~NM
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Very flat and bright. May have up to two tiny stress lines on spine. Corners are sharp with barely perceptible blunting. Staples centred with no rust. Cover gloss is nearly full.
✓ ALLOWED DEFECTS
- ✓Up to two tiny spine stress lines
- ✓Barely detectable blunting on one corner
- ✓Trivial printing defect
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Visible corner creases
- ✕Any cover staining
- ✕Any subscription fold
- ✕Tanned pages
💡 SELLER TIP
The gold standard for raw submissions to CGC. Books you genuinely believe are 9.8 are excellent candidates for slabbing if they're high-value keys.
HIGH GRADE
Investment-quality books with minimal handling or visible wear.
CGC 9.2 – 9.6
Near Mint
The benchmark high grade for raw collectors. Very bright, clean, and flat with minimal wear.
VS NM PRICE
~NM
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover is bright and glossy with virtually no wear. Spine may show a couple of small stress lines. Corners are nearly square with only the slightest blunting. Pages are white to cream. Staples may show minor discolouration at the tips.
✓ ALLOWED DEFECTS
- ✓A few small spine stress lines
- ✓Slight blunting on one to two corners
- ✓Minimal staple tip discolouration
- ✓Slight cover reflectivity loss
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Definite spine roll
- ✕Corner creases that break colour
- ✕Any cover stains
- ✕Subscription crease
- ✕Writing
💡 SELLER TIP
NM is the most commonly over-graded condition. Hold the book at 45° under a lamp and check spine stress, corner sharpness, and cover gloss before listing.
CGC 9.0
Very Fine / Near Mint
Slight wear that is only noticeable up close. An excellent, displayable copy.
VS NM PRICE
75%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover is bright with minor loss of gloss. Spine shows a few stress lines. Corners have slight blunting but no outright creasing. Staples may show minor rust beginning. Pages are off-white to white.
✓ ALLOWED DEFECTS
- ✓Up to 5 small spine stress lines
- ✓Slight corner blunting on all four corners
- ✓Minor staple discolouration
- ✓Minimal cover soiling
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Any colour-breaking creases on cover
- ✕Rolled spine
- ✕Subscription fold
- ✕Any stains larger than a pin-prick
- ✕Writing of any kind
💡 SELLER TIP
This is a great sweet spot for affordable high-grade keys. The difference from NM is typically only visible side-by-side.
MID GRADE
Well-preserved copies with light wear — still eye-appealing.
CGC 7.5 – 8.5
Very Fine
Well-preserved with slight creasing and wear visible. Still an eye-appealing, displayable book.
VS NM PRICE
55%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover has some loss of gloss. Spine shows multiple stress lines or one or two light creases. Corners may show slight creasing but no major colour break. Staples may have slight rust. Pages are off-white to cream.
✓ ALLOWED DEFECTS
- ✓Slight spine roll if minor
- ✓Up to a 1/2″ crease on cover or spine
- ✓Light soiling
- ✓Staples with minimal rust
- ✓Corner creasing without significant colour break
✕ DEAL BREAKERS (DROPS GRADE)
- ✕More than 1/2″ cover crease
- ✕Subscription fold that breaks colour
- ✕Significant staining
- ✕Tape repairs
- ✕Missing or replaced pages
💡 SELLER TIP
Most newsstand copies from the 1970s–80s grade here. Check that creases don't break colour — that's the line between VF and FN.
CGC 7.0
Fine / Very Fine
Between Fine and Very Fine — shows definite wear but still above average.
VS NM PRICE
40%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover shows some wear and loss of sheen. Spine has several stress lines or a moderate crease. Corners are slightly blunted with some colour break. Staples may show rust. Pages are cream to off-white.
✓ ALLOWED DEFECTS
- ✓Multiple spine stress lines
- ✓Small colour-breaking creases on corners
- ✓Slight subscription fold
- ✓Minor amateur repair
- ✓Light staple rust
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Major subscription fold
- ✕Taped spine or cover
- ✕Stamps
- ✕Large water stains
- ✕Missing pieces
💡 SELLER TIP
Be conservative when choosing between FN/VF and FN. If you're unsure, go lower — buyers appreciate honest grading far more than aspirational grading.
CGC 5.5 – 6.5
Fine
Noticeable wear from regular reading. Still a solid copy with no major defects.
VS NM PRICE
30%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover shows definite wear and reduced gloss. Spine may have a single moderate crease. Corners show wear with some colour break. Staples may have moderate rust. Pages are cream to tanned at edges.
✓ ALLOWED DEFECTS
- ✓Moderate spine roll
- ✓Up to a 1″ crease on cover
- ✓Subscription fold not affecting readability
- ✓Light soiling
- ✓Amateur colouring or stamps in margins
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Multiple 1″+ creases
- ✕Significant water damage
- ✕Loose centrefold
- ✕Torn cover
- ✕Writing over artwork
💡 SELLER TIP
Fine is the workhorse grade of the back-issue bin. It's often the best affordable option for readers who still want a presentable copy.
LOW-MID GRADE
Clearly read copies with visible wear — common find at shops and cons.
CGC 5.0
Very Good / Fine
Clearly worn from multiple reads. Acceptable but not impressive condition.
VS NM PRICE
22%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover has wear and moderate soiling. Spine shows creases and may be slightly rolled. Corners are blunted with colour break. Centrefold is secure. Pages are tanned.
✓ ALLOWED DEFECTS
- ✓Multiple colour-breaking creases
- ✓Moderate subscription fold
- ✓Minor tape repairs on non-cover areas
- ✓Brown pages
- ✓Moderate staple rust
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Loose or detached centrefold
- ✕Tape on cover
- ✕Significant chunks missing
- ✕Major staining
- ✕Cover detached
💡 SELLER TIP
At this grade buyers know they're buying a reader. Accurate grading and competitive pricing matter more than condition notes.
CGC 3.5 – 4.5
Very Good
Obvious handling and wear. Structurally sound but clearly a read copy.
VS NM PRICE
15%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover may have significant creasing, soiling, or corner wear. Spine creases present. Cover may be slightly detached at one staple. Centrefold secure. Pages are tanned to brown.
✓ ALLOWED DEFECTS
- ✓1/4″ missing from corner or edge
- ✓Tape on spine if not covering art
- ✓Heavy staple rust
- ✓Subscription address
- ✓Writing in margins
- ✓Rolled spine
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Cover completely detached
- ✕Missing interior pages
- ✕Major pieces missing from cover
- ✕Tape covering key artwork
- ✕Torn spine
💡 SELLER TIP
Always disclose specific defects at this grade (e.g., "tape on back cover", "name stamp on cover"). Buyers expect it and will not dispute if you're upfront.
READING COPY
Heavy wear but complete and legible — valued for content over grade.
CGC 3.0
Good / Very Good
Well-read copy with significant wear. Still complete and readable.
VS NM PRICE
12%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover shows heavy wear, creasing, and possible soiling. Multiple spine creases. Corners may be rounded. Cover may be partly detached. Pages are tanned to brittle at edges.
✓ ALLOWED DEFECTS
- ✓Both covers attached but with heavy wear
- ✓Moderate brittleness
- ✓Heavy subscription address
- ✓Tape on spine
- ✓Rolled or split spine
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Interior pages missing
- ✕Cover completely absent
- ✕Centrefold detached
- ✕Significant chunks of cover missing
💡 SELLER TIP
Price these aggressively. Collectors chasing keys at any grade will buy, but only if the price reflects the condition honestly.
CGC 1.8 – 2.5
Good
Significant wear and possible defects, but still a complete, readable copy.
VS NM PRICE
8%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover has heavy wear, possibly missing up to 1/4 of one corner. Spine may be split up to 1/2″ at top or bottom. Cover may be partially detached. Pages are brown, may be brittle.
✓ ALLOWED DEFECTS
- ✓Cover attached at least at one staple
- ✓Up to 1/8 of cover absent if not impacting story
- ✓Very heavy creasing and soiling
- ✓Brown brittle pages
- ✓Amateur restoration attempts
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Missing interior pages
- ✕Cover completely missing
- ✕More than half cover absent
💡 SELLER TIP
Good is the bottom of the "collectable" range. Very early issues (1930s–50s) in Good often outperform VG copies of later keys by raw dollar value.
DISTRESSED
Significant damage, missing pieces, or structural compromise.
CGC 1.5
Fair
Heavily worn — still complete but with significant structural damage.
VS NM PRICE
5%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
Cover and interior show severe wear. May be missing up to 1/4 of the cover. Spine may be completely split. Staples may be missing and replaced with tape or glue. Pages may be brittle.
✓ ALLOWED DEFECTS
- ✓Up to 1/4 of cover missing
- ✓Completely split spine
- ✓Missing staples if cover is held by tape
- ✓Extremely brittle pages
- ✓Pieces missing from interior if no story content lost
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Interior pages missing
- ✕Cover completely absent
💡 SELLER TIP
Only sell Fair copies of significant keys or very early issues. Most buyers at this grade want the book for content, not display.
CGC 0.5 – 1.0
Poor
Extremely damaged or incomplete. Value only for extraordinarily scarce issues.
VS NM PRICE
2%
▶DETAILED DESCRIPTION, ALLOWED DEFECTS & SELLER TIP
📖 APPEARANCE
May be heavily mutilated, water-damaged, or fire-damaged. Major pieces of cover missing. Multiple interior pages may be missing or severely compromised. Structure barely held together.
✓ ALLOWED DEFECTS
- ✓Almost any defect short of complete destruction
- ✓Major pieces missing
- ✓Extreme brittleness
- ✓Mould damage if not actively spreading
✕ DEAL BREAKERS (DROPS GRADE)
- ✕Completely destroyed — no collectible value whatsoever
💡 SELLER TIP
Only list Poor copies of truly irreplaceable issues (Action Comics #1, Detective Comics #27, etc.) where even fragments have value. Price accordingly.
GRADE COMPARISON TABLE
| Grade | Full Name | CGC Numeric | Page Quality | Spine Wear | Corner Wear | Relative Value | Seller Tip |
|---|---|---|---|---|---|---|---|
| GM | Gem Mint | 10.0 | White | None | None | = NM | Practically impossible to achieve from a read copy. If you think a book is GM, s… |
| MT | Mint | 9.9 | White | None | None | = NM | If you can see the flaw from across the room, it's not Mint. Very few raw copies… |
| NM/MT | Near Mint / Mint | 9.8 | White | None | Minimal | = NM | The gold standard for raw submissions to CGC. Books you genuinely believe are 9.… |
| NM | Near Mint | 9.2 – 9.6 | White | Minimal | Minimal | = NM | NM is the most commonly over-graded condition. Hold the book at 45° under a lamp… |
| VF/NM | Very Fine / Near Mint | 9.0 | Off-White | Slight | Slight | 75% NM | This is a great sweet spot for affordable high-grade keys. The difference from N… |
| VF | Very Fine | 7.5 – 8.5 | Off-White | Slight | Slight | 55% NM | Most newsstand copies from the 1970s–80s grade here. Check that creases don't br… |
| FN/VF | Fine / Very Fine | 7.0 | Off-White | Moderate | Slight | 40% NM | Be conservative when choosing between FN/VF and FN. If you're unsure, go lower —… |
| FN | Fine | 5.5 – 6.5 | Cream | Moderate | Moderate | 30% NM | Fine is the workhorse grade of the back-issue bin. It's often the best affordabl… |
| VG/FN | Very Good / Fine | 5.0 | Cream | Moderate | Moderate | 22% NM | At this grade buyers know they're buying a reader. Accurate grading and competit… |
| VG | Very Good | 3.5 – 4.5 | Tanned | Heavy | Moderate | 15% NM | Always disclose specific defects at this grade (e.g., "tape on back cover", "nam… |
| GD/VG | Good / Very Good | 3.0 | Tanned | Heavy | Heavy | 12% NM | Price these aggressively. Collectors chasing keys at any grade will buy, but onl… |
| GD | Good | 1.8 – 2.5 | Tanned | Severe | Heavy | 8% NM | Good is the bottom of the "collectable" range. Very early issues (1930s–50s) in … |
| FR | Fair | 1.5 | Brittle | Severe | Severe | 5% NM | Only sell Fair copies of significant keys or very early issues. Most buyers at t… |
| PR | Poor | 0.5 – 1.0 | Brittle | Severe | Severe | 2% NM | Only list Poor copies of truly irreplaceable issues (Action Comics #1, Detective… |
⚠️ COMMON GRADING MISTAKES TO AVOID
Grading in bad lighting
Always inspect under a bright, angled lamp or LED light. Spine stress lines and shallow creases are nearly invisible in overhead room lighting.
Forgetting the spine check
Hold the book closed and look down the spine from one end. Any rolling or creasing that's invisible face-on will appear immediately.
Ignoring page quality
A book with a gorgeous cover can have deeply tanned, brittle pages inside. Always flip through. Tanned pages typically drop a book at least one full grade band.
Aspirational grading
"NM to me" is the number one cause of disputes. When in doubt, grade one step down. An honestly graded VF sells faster than an over-graded NM.
Overlooking staple rust migration
Even light rust on staples can mean rust has already migrated to the pages surrounding the staple holes. Check both inside and out.
Not checking the centrefold
A detached or loose centrefold drops most books to VG or below regardless of cover condition. Always check that the middle pages are secure.
READY TO LIST YOUR BOOKS?
Apply what you've learned and list with confidence. Accurate grading = fewer disputes = faster sales.
🔑 What's a Key Issue?
A key issue is a comic that marks a significant moment in a character's or story's history, and because of that significance it tends to hold or grow in value over time.
🦸
FIRST APPEARANCE
The issue where a character appears for the first time. The most sought-after type of key.
🎭
ORIGIN ISSUE
Reveals how a character got their powers or identity, even if they appeared earlier.
💀
DEATH ISSUE
A major character dies. Especially valuable if the death is permanent (rare in comics).
🔄
TURNING POINT
Major costume change, new villain debut, or storyline milestone. Pivotal moments collectors track.
Grading matters more for keys: a 9.8 copy of a major key can be worth 3–10× a 9.0 of the same issue. That's why collectors pay a premium for CGC or CBCS-certified slabs — the grade is independently verified and the book is preserved.
Browse Key Issues →