
Google Play Books, formerly Google eBooks, is an ebook digital distribution service operated by Google, part of its Google Play product line. Users can purchase and download ebooks and audiobooks from Google Play, which offers over five million titles, with Google claiming it to be the "largest ebooks collection in the world". Books can be read on a dedicated Books section on the Google Play website, through the use of a mobile app available for Android and iOS, through the use of select e-readers that offer support for Adobe Digital Editions, through a web browser and reading via Google Home. Users may also upload up to 1,000 ebooks in the PDF or EPUB file formats. Google Play Books is available in 75 countries.

The Library Corporation (TLC) creates and distributes automation and cataloging software to public, school, academic, and special library systems worldwide. Based in Inwood, W.Va., with additional offices in Denver, Singapore, and Ontario, the company is owned and operated by the same family that established it in 1974.

The National Curriculum and Textbook Board (NCTB) is an autonomous organisation under the Ministry of Education in Bangladesh, responsible for the development of curriculums, production and distribution of textbooks at primary and secondary education levels.

Study guides can be broad based to facilitate learning in a number of areas, or be resources that foster comprehension of literature, research topics, history, and other subjects.
A textbook is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it. Textbook are produced to meet the needs of educators, usually at educational institutions. Schoolbooks are textbooks and other books used in schools. Today, many textbooks are published in both print format and digital formats.

A Textbook Excellence Award ("Texty") from the Textbook and Academic Authors Association recognizes current textbooks and learning materials based on criteria established by the group. Judges are veteran authors in appropriate subject areas. Nominations from eight subject areas are reviewed each year from titles with a current or prior year date of publication. A maximum of one award per category is granted annually. The first year this award was granted was 1992.

The Text Books is an Iranian documentary by Mahmoud Shoolizadeh. It introduces the strengths and weaknesses of textbooks in Iran. Editors, experts and teachers explain their views and critic the current situation of textbooks in Iran.
Tokyo Shoseki Co. Ltd. (東京書籍株式会社) is a Japanese company engaged in the textbook and other publishing businesses. The company is well known as the largest publisher of textbooks in Japan, but also publishes reference books and Digital textbooks, educational assessment question, and many other general books, in a wide range of business areas.The company was founded in 1909.The company celebrated its 100th anniversary in 2009.