| 0 | Dust Jacket | cover | 1 | pencils: Gil Kane; inks: Gil Kane; colors: Jamison | Atom [Ray Palmer] |
| 1 | Title Page | credits, title page | 1 | pencils: Gil Kane; inks: Sid Greene; colors: Jamison | |
| 2 | Copyright | credits, title page | 1 | letters: typeset | |
| 3 | Table of Contents | table of contents | 2 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison | |
| 4 | Foreword | foreword, introduction, preface, afterword | 2 | script: Roy Thomas; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison | |
| 5 | [Cover - Atom #6]; The Highwayman and the Mighty Mite! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer] |
| 6 | The Riddle of the Two-Faced Astronaut! | comic story | 13 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Jean Loring; Wizardo the Great; Chief Baxter; Peter Venner; Howard Crane (villain) |
| 7 | The Highwayman and the Mighty Mite! | comic story | 12 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Professor Alpheus V. Hyatt; Dick Turpin (villain); Black Bess; Lady Jane; Tom King |
| 8 | [Cover - Atom #7]; Case of the Cosmic Camera! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Hawkman [Katar Hol; Carter Hall] |
| 9 | The Case of the Cosmic Camera! | comic story | 25 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Hawkman [Katar Hol; Carter Hall]; Hawkgirl [Shayera Thal; Shiera Hall] (cameo); Chief Baxter; Jean Loring; Thanagarians; Thalens (villains) |
| 10 | [Cover - Atom #8]; Lockup in the Lethal Lightbulb! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Dr. Light [Arthur Light] |
| 11 | The Lockup in the Lethal Lightbulb! | comic story | 15 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | Justice League of America [JLA; Aquaman [Arthur Curry; Orin]; Green Lantern [Hal Jordan]; The Flash [Barry Allen]; Wonder Woman [Diana Prince]; Batman [Bruce Wayne]; Green Arrow [Oliver Queen]; Superman [Clark Kent; Kal-El]; Martian Manhunter [J'onn J'onzz] (flashback only); Snapper Carr] (all cameo |
| 12 | The Purloined Miniatures | comic story | 10 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Bill Wilson; Rodney Morton; Jean Loring; Alfred Trask (villain); Warden Barnes |
| 13 | [Cover - Atom #9]; The Atom's Phantom Double! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer] |
| 14 | The Atom's Phantom Double! | comic story | 13 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer] |
| 15 | The Seaman and the Spyglass! | comic story | 12 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Henry Hudson; Jan Lippershey; Professor Alpheus V. Hyatt |
| 16 | [Cover - Atom #10]; Ride a Deadly Grenade! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer] |
| 17 | Ride a Deadly Grenade! | comic story | 13 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Ferdinand Alt; Jean Loring; foreign agents (villains); a C.I.A. agent |
| 18 | The Mysterious Swan-Maiden! | comic story | 12 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Jean Loring; Judge Emil Potter; Johnny Trent; Rutherford Toller; Bill Cook; The Swan-Maiden (villain) |
| 19 | [Cover - Atom #11]; Trouble at the Ten-Year Club! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer] |
| 20 | Trouble at the Ten-Year Club! | comic story | 13 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Jack Archer (villain) |
| 21 | Voyage to Beyond! | comic story | 12 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Jean Loring; Kathis (villain); Anton (villain); Santh (villain) |
| 22 | [Cover - Atom #12]; Danger--Atom-Gun at Work! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer] |
| 23 | Danger--Atom-Gun at Work! | comic story | 13 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Jean Loring; Enrichetta Negrini |
| 24 | The Gold Hunters of '49! | comic story | 12 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Edgar Allan Poe; Professor V. Hyatt; Charles Barr |
| 25 | [Cover - Atom #13]; Weapon Watches of the Time-Wise Guy! | cover reprint (on interior page) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Chronos [David Clinton] |
| 26 | Weapon Watches of the Time-Wise Guy! | comic story | 15 | script: Gardner Fox; pencils: Gil Kane; inks: Sid Greene; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Anton Teljas; Jason Thrower; Eva Teljas; Jean Loring; Chronos [David Clinton] (villain) |
| 27 | I Accuse Ray Palmer -- Of Robbery! | comic story | 10 | script: Gardner Fox; pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | The Atom [Ray Palmer]; Fred Norton (villain); Billy the Wheel (villain) |
| 28 | Biographies | text article | 1 | script: Mark Waid | |
| 29 | Backcover | promo (ad from the publisher) | 1 | pencils: Gil Kane; inks: Murphy Anderson; colors: Jamison; editing: Julius Schwartz | Atom [Ray Palmer]; Hawkman [Katar Hol; Carter Hall]; Chronos [David Clinton] |