"The phrase "picture book" is commonly used to describe a book, most often written for children, in which the content is conveyed through the use of words and pictures in combination or through pictures alone. A picture book differs from an illustrated book in that the pictures it contains form an essential part of the structure of the book. Due to physical factors in the bookbinding process, picture books are conventionally 32 pages long." - Enoch Pratt Free Library
Look through examples of noteworthy picture books and their creators from the 1700s to the twenty-first century.
Before 1800 - Before 1900 - 1900s - 1910s
Image courtesy of Mazza Museum
"The Caldecott Medal was named in honor of nineteenth-century English illustrator Randolph Caldecott. It is awarded annually by the Association for Library Service to Children, a division of the American Library Association, to the artist of the most distinguished American picture book for children."