Containing nearly every book, pamphlet and broadside published in America from 1639 to 1800, Evans Digital Edition will, upon completion, consist of more than 36,000 works and 2,400,000 images.

Based on Charles Evans' comprehensive American Bibliography and enhanced by Roger Bristol's Supplement to Evans' American Bibliography, the collection was first published by Readex in cooperation with AAS as a microform set. Evans Digital Edition will include every item previously produced on microform plus more than 1,200 additional works located, cataloged and digitized since completion of the earlier effort.