| 0 | - | cover | 1 | pencils: Bob Larkin; inks: Bob Larkin; colors: Bob Larkin | |
| 1 | Frontispiece | illustration | 1 | pencils: ? (photo); inks: ? (photo) | |
| 2 | - | table of contents | 1 | pencils: Mike Ploog, George Tuska; inks: Frank Chiaramonte, Mike Esposito | |
| 3 | Ape-Line! | letters page | 2 | pencils: Mike Ploog, George Tuska; inks: Mike Ploog, Mike Esposito | |
| 4 | A Riverboat Named Simian | comic story | 9 | script: Doug Moench; pencils: Mike Ploog; inks: Frank Chiaramonte; letters: Joe Rosen | Alexander; Jason; Lawgiver; Warko; Brutus (villain); Inheritors; mutants |
| 5 | Gunpowder Julius (Ch. 2) | comic story | 19 | script: Doug Moench; pencils: Mike Ploog; inks: Frank Chiaramonte, Jim Mooney, Frank Springer; letters: Joe Rosen | Jason; Alexander; Lawgiver; Warko; Brutus; Gunpowder Julius (introduction, a mountain-man ape); Steely Dan (introduction); Inheritors; mutants |
| 6 | Marvel Poster Masterpieces | promo (ad from the publisher) | 1 | letters: typeset | Spider-Man; Dracula; Shang-Chi; Thor; Conan; Captain America; Hulk |
| 7 | The Greatest Gift of the Year! | promo (ad from the publisher) | 0.5 | letters: typeset | |
| 8 | A Half-Hour with Harper | text article | 12 | script: Chris Claremont | |
| 9 | Planet of the Apes: Fashions | text article | 3 | script: Ed Lawrence | |
| 10 | Uncle Stan Wants You to Buy Crazy | promo (ad from the publisher) | 0.33 | letters: typeset | Stan Lee |
| 11 | The Marvel Bullpen Page Goes Black and White and Read All Over | promo (ad from the publisher) | 1 | script: Marv Wolfman | |
| 12 | Trial (Ch. 4) | comic story | 20 | script: Doug Moench; pencils: George Tuska; inks: Mike Esposito; letters: Dave Hunt | |
| 13 | Shambling Your Way in Just One Month! | promo (ad from the publisher) | 1 | pencils: Ron Wilson; inks: Duffy Vohland | |
| 15 | A Very Tasteful Subscription Ad | promo (ad from the publisher) | 1 | script: ? [as Norton G. Fester]; pencils: ? (photography); inks: ? (photography); letters: typeset | |