Textbooks

thumb|right|Growth of the eight largest Wikibooks sites (by language), July 2003–January 2010

thumb|Textbooks written in Pashto distributed to Afghan school children A textbook is a book containing a comprehensive compilation of content in a branch of study serving to explain the subject. Textbooks are produced to meet the needs of educators, usually at educational institutions, as well as learners (who could be independent learners outside of formal education). Schoolbooks are textbooks and other books used in schools. Today, many textbooks are published in both print and digital formats.

13th-century Norse work of literature written in Iceland

thumb|A technician referring to an instructional handbook for the operation of a machine thumb|upright|Early 20th century handbook for operating a motor car A handbook is a type of reference work, or other collection of instructions, that is intended to provide ready reference. The term originally applied to a small or portable book containing information useful for its owner, but the Oxford English Dictionary defines the current sense as "any book ... giving information such as facts on a particular subject, guidance in some art or occupation, instructions for operating a machine, or informat

written work by John Amos Comenius

series of instructional/reference books

thumb|Quadripartitum, 1622

alt=Two young girls sit close together at their desk, and look attentively at their workbook.|thumb|300x300px|Two girls in Mali use workbooks during their reading class. Workbooks are paperback textbooks issued to students. Workbooks are usually filled with practice problems, with empty space so that the answers can be written directly in the book.

a digital book or e-book

textbooks under open copyright licenses

1877 novel by G. Bruno