As of 2015, the biggest publisher of 5th-grade science textbooks is Pearson Education. In general, Pearson is the largest supplier of textbooks used in the world's classrooms.
In addition to science textbooks, Pearson Education provides textbooks for other basic core subjects such as language arts, social studies and mathematics. AP class textbooks are also available through Pearson Education, as are honors-level textbooks. Other subjects covered include the arts and music.
Textbooks for world languages are also available through Pearson Education. Languages offered include Chinese, French and Spanish.
Pearson Education also supplies textbooks that cover Common Core material, as well as online textbooks that can be accessed by students and teachers.