The Super Digest is a bi-monthly series of books featuring, usually, over 100 pages of material in a digest format. Each issue primarily contains comic stories reprinted from past issues of the ongoing comics, with occasional new stories appearing. Interspersed between these stories are various pin-ups and coloring pages, usually consisting of older art.
The format of the series has changed considerably since its launch. The first two issues consisted of a wide array of old stories from throughout the Archieverse's history, along with numerous special features, including introduction and index pages, character spotlights along with specially-made data files, and original editorials, such as "Professor Pickle's Nature Notebook" (the Professor compares Mobian animal species to their real-world counterparts), "Global Gateway" (Wentos the Traveling Salesman explores the various locations on Mobius) and "Endless Arcade" (facts and trivia about a classic Sonic video game, accompanied by the official comic book adaptation of said game). Due to the comics behind the scenes legal troubles that had cropped up at the time, most of these features were dropped by issue three (with only the data files remaining) and from issue 4 and onward, all special features were dropped, so that only comic stories and pin-ups remained.
As the ongoing comics began transitioning to the Post-Super Genesis Wave Timeline, the story selections also shifted to mainly feature recent stories from the new timeline, essentially turning the digests into a "catch-up" for newer readers.
While the vast majority of the comic stories that appear in the book are reprints, new stories have appeared on occasion. The first of such stories was a tie-in story to the downloadable game Sonic Jump. The digests are currently the primary home of the Sonic Comic Origins supplementary stories, with new instalments appearing in various issues (though not consecutively).
On extremely rare occasions, larger-sized issues are released, which go under the alternate title of "Sonic Super-Sized Comics Digest". These books bump the usual page count of around 100 to well over 200, allowing for more content. These books keep the issue numbering of the normal-sized digests, despite the alternate title.
Another variant of the digest to be released was "Sonic Super Digest Special Edition", which was accompanied by special features revolving around the new Sonic comic timeline (though in reality, these were merely reprints of features that had previously appeared in the Sonic Super Special Magazine).