Endpapers
The sheets that join the book block to a hardcover case, glued inside the front and back boards.
More in Book anatomy
Back matter
Everything after the main text: appendices, notes, glossary, bibliography, index, acknowledgements and author bio.
Colophon
A note (often at the back) describing the book's production — typeface, paper, printer. Historically, a publisher's emblem.
Copyright page
The verso of the title page, holding copyright notice, ISBN, edition, publisher details and legal lines. Also called the imprint page.
Dust jacket
The removable printed paper cover wrapped around a hardback, with flaps for blurb and author bio.
Epigraph
A short quotation at the start of a book or chapter that sets a tone or theme.
Foreword / preface / introduction
A foreword is written by someone other than the author; a preface is the author's note on how the book came to be; an introduction opens the subject itself.