Cover 2 is the back cover, that is, the back of the back cover, which is mostly blank and printed with words.

The front cover 3 is opposite to the back cover.

Cover 4 is the last page of the book, which is the back cover.

The first cover of ordinary books and periodicals is printed with the title, publisher and author, the third cover of ordinary books and periodicals is printed with advertisements, and the fourth cover is printed with copyright.

The book block is bound into a book, and the cover is the name of the book block after the outer surface is painted. Cover, also known as book cover, cover and outer cover, is divided into one, two (cover), three and four (back cover).

Extended data:

Cover content

Its contents include layout design, cover design, layout design, binding form, materials and so on. , including layout, cover, cover, spine, layout, backing paper, title page, illustration, insert, back cover, copyright page, letter, etc. Cover design generally consists of two parts: text and pictures. The binding form of books is related to the arrangement.

Most books in China are horizontally arranged, and the binding forms are hardcover, paperback, single line, binding, universal, miniature, pocket, special collection, luxury and so on. In addition, there are floating mouth, rounded corners, wrapped corners, marks, burrs and other installation forms. The spine of books is divided into round spine and square spine.

Baidu Encyclopedia-Cover

Baidu Encyclopedia-Book Cover