Folio and Textbook

Folio noun - A book (or manuscript) consisting of large sheets of paper folded in the middle to make two leaves or four pages.

Textbook and folio are semantically related. in published document topic. In some cases you can use "Textbook" instead a noun "Folio".

Textbook noun - A book used for instruction in a subject.

Folio and textbook are semantically related. Sometimes you can use "Folio" instead a noun "Textbook".