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In the book trade, a tipped-in page or, if it is an illustration, tipped-in plate or simply plate, is a page that is printed separately from the main text of the book, but attached to the book.
A tipped-in page may be glued onto a regular page, or even bound along with the other pages. It is often printed on a different kind of paper, using a different printing process, and of a different format than a regular page.
Some authors include loose pages inserted into a book as tipped-in, but in this case, it is usually called an insert instead.
Typical uses of tipped-in pages added by the publisher include:
- color illustrations, generally printed using a different process (e.g. intaglio or lithography) and on different paper
- an author's signature, signed on a blank or preprinted page, before the book is bound
- original photographic prints
- maps, often larger than the book format and folded to fit
- coupons, advertisements, or reply cards
- errata sheets, only produced after the printing run
- a short addendum
- a replacement for a missing, damaged, or incorrectly printed page
Owners of books may also tip in such items as:
- a letter from the author
- a review
Tipped-in pages are generally glued to a bound page on its inner side and may be called "paste ins".
- Glossary of the International League of Antiquarian Booksellers, s.v. tipped-in