| 0 | - | cover | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Allen Passalaqua | Alec Holland, Swamp Thing |
| 1 | - | promo (ad from the publisher) | 0.33 | pencils: Nestor Redondo; inks: Nestor Redondo | |
| 2 | DC Comics Classics Library: Roots of the Swamp Thing | credits, title page | 1 | pencils: Nestor Redondo; inks: Nestor Redondo | |
| 3 | Publication Data Page | credits, title page | 1 | pencils: Nestor Redondo; inks: Nestor Redondo | |
| 4 | Contents | table of contents | 1 | letters: typeset | |
| 5 | Introduction | foreword, introduction, preface, afterword | 2 | script: Len Wein; pencils: Nestor Redondo; inks: Nestor Redondo | |
| 6 | The House of Secrets #92 | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Jack Adler | Alex Olsen, Swamp Thing |
| 7 | Swamp Thing | comic story | 8 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson | Alex Olsen Origin, Swamp Thing Origin |
| 8 | Swamp Thing #1 | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson | Maxwell Ferrett, Alec Holland, Linda Holland, Swamp Thing |
| 9 | Dark Genesis! | comic story | 24 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson | Anton Arcane, Matthew Cable, Mister E., Nathan Ellery, Maxwell Ferrett, Alec Holland Origin, Linda Holland Death, Swamp Thing Origin |
| 10 | Swamp Thing #2 | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson, Glynis Wein | Anton Arcane, Alec Holland, Swamp Thing |
| 11 | The Man Who Wanted Forever | comic story | 24 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson, Glynis Wein; letters: Gaspar Saladino | Anton Arcane, Gregori Arcane, Matthew Cable, Cranius, Mister E., Nathan Ellery, Maxwell Ferrett Death, Alec Holland, Linda Holland, Ophidian, The Patchwork Man, Swamp Thing |
| 12 | Swamp Thing #3 | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson | Abigail Arcane, Gregori Arcane, Alec Holland, The Patchwork Man, Swamp Thing |
| 13 | The Patchwork Man | comic story | 23 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson; letters: Gaspar Saladino | Abigail Arcane, Anton Arcane, Gregori Arcane Origin, Matthew Cable, Mister E., Nathan Ellery, Alec Holland, The Patchwork Man Origin, Swamp Thing |
| 14 | Swamp Thing #4 | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson | Alec Holland, Swamp Thing |
| 15 | Monster on the Moors! | comic story | 22.33 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson; colors: Bernie Wrightson | Abigail Arcane, Matthew Cable, Alec Holland, Swamp Thing |
| 16 | - | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson | Rebecca Ravenwind; Swamp Thing [Alec Holland] |
| 17 | The Last of the Ravenwind Witches! | comic story | 22.67 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson; letters: Gaspar Saladino | Swamp Thing [Alec Holland] (origin recap); Linda Holland (cameo flashback); Rebecca Ravenwood; Timothy Ravenwood; Jocko; Gideon; Smith |
| 18 | - | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland] |
| 19 | A Clockwork Horror | comic story | 20 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland]; Matt Cable; Abigail Arcane; Jack; The Conclave; Mayor Hans Klochmann |
| 20 | - | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson | Batman [Bruce Wayne]; Swamp Thing [Alec Holland] |
| 21 | Night of the Bat | comic story | 20.33 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson; letters: Gaspar Saladino | Abigail Arcane; Alfred Pennyworth; Batman [Bruce Wayne]; Commissioner James Gordon; Dr. Hammerschmidt; Driscoll (limousine driver); Matt Cable; Nathan Ellery [Mr. E] (Wayne Foundation member); Swamp Thing [Alec Holland] (origin recap); Ferrett (flashback cameo); Linda Holland (flashback cameo) |
| 22 | - | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland] |
| 23 | The Lurker in Tunnel 13! | comic story | 20 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland]; Ezekiel; Hector; Jason; Mayor Mutteridge; Lydia; Jody; M'Nagalah; Abraham (flashback) |
| 24 | - | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland] |
| 25 | The Stalker from Beyond! | comic story | 20 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson, Jeff Jones | Swamp Thing [Alec Holland]; Rufe; Elmo; Abigail Arcane; Matt Cable; Smithers; Captain Brad Samson; Private Optik; O'Reilly; Trumbo; Twitchett |
| 26 | - | cover reprint (on interior page) | 1 | pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland] |
| 27 | The Man Who Would Not Die! | comic story | 20 | script: Len Wein; pencils: Bernie Wrightson; inks: Bernie Wrightson | Swamp Thing [Alec Holland]; "Hunk" Dorry; Auntie De Luvian; Samson Parminter; Elsbeth; Black Jubal; Un-Men; Anton Arcane; Cranius |
| 28 | - | cover reprint (on interior page) | 1 | pencils: Luis Dominguez; inks: Luis Dominguez | Swamp Thing [Alec Holland] |
| 29 | The Conqueror Worms! | comic story | 20 | script: Len Wein; pencils: Nestor Redondo; inks: Nestor Redondo; colors: Tatjana Wood; letters: Marcos Pelayos | Swamp Thing [Alec Holland]; Matt Cable; Abigail Arcane; Luke; Kain; Ruth; Jefferson Bolt (introduction); Professor Zachary Nail; Dr. Thirteen (cameo flashback) |
| 30 | - | cover reprint (on interior page) | 1 | pencils: Nestor Redondo; inks: Nestor Redondo | Swamp Thing [Alec Holland] |
| 31 | The Eternity Man | comic story | 20 | script: Len Wein; pencils: Nestor Redondo; inks: Nestor Redondo; colors: Tatjana Wood; letters: Marcos Pelayos | Swamp Thing [Alec Holland]; Matt Cable; Abigail Arcane; Jefferson Bolt; Caesar; Milo Mobius; Gretel |
| 32 | - | cover reprint (on interior page) | 1 | pencils: Nestor Redondo; inks: Nestor Redondo | |
| 33 | The Leviathan Conspiracy | comic story | 20 | script: Len Wein; pencils: Nestor Redondo; inks: Nestor Redondo; colors: Tatjana Wood; letters: Marcos Pelayos | Swamp Thing; Matt Cable; Jefferson Bolt; Abigail Arcane; Professor Degréz (introduction, dies); John Zero (introduction) |
| 34 | Biographies | text article | 1 | letters: typeset | |
| 35 | DC Comics Classics Library | promo (ad from the publisher) | 1 | letters: typeset | |
| 36 | - | promo (ad from the publisher) | 0.33 | letters: typeset | |
| 37 | Roots of the Swamp Thing | promo (ad from the publisher) | 1 | pencils: Nestor Redondo; inks: Nestor Redondo | |