trade paperback

Noun

 * 1)  A softcover edition of a previously hardcover book, usually produced with the exact same text as the hardcover.
 * 2)  A paperback book that is in one of the standard sizes for small paperbacks, generally for genre fiction.
 * 3)  A type of comic book whose content primarily consists of previously published material, usually originally in a periodical format, and bound together as one work, or part of a series itself.