Orbis Pictus, or Orbis Sensualium Pictus, is a textbook for children written by Czech educator John Amos Comenius and published in 1658. It was the first widely used children's textbook with pictures, published first in Latin and German and later republished in many European languages. It has been described as "probably the first purpose-made children's picturebook". The revolutionary book quickly spread around Europe and became the defining children's textbook for centuries.

A textbook is a book containing a comprehensive compilation of content in a branch of study with the intention of explaining it. Textbooks 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 and digital formats.