8. The computer-implemented method of claim 7 , wherein the second body text of the one or more candidate title sets comprises a canonical text corresponding to the one or more candidate title sets.
7. A computer-implemented method, comprising: under control of one or more processors configured with executable instructions, receiving, from a device of an author and via a content ingestion service associated with a network, an electronic book having first body text and first metadata; normalizing the electronic book by at least one of removing illustrations from the electronic book, removing extraneous characters from the electronic book, or converting characters of the electronic book to a single case; comparing the first metadata of the electronic book with second metadata corresponding to other books to identify one or more candidate title sets of which the electronic book may be a member; determining that a number of the one or more candidate title sets meets or exceeds a pre-determined number of candidate title sets; and based at least partly on the determining that the number of the one or more candidate title sets meets or exceeds the pre-determined number of candidate title sets, comparing the first body text of the electronic book with second body text of the one or more candidate title sets to determine that the electronic book is a member of the one or more candidate title sets.