Scholastic Corporation (Pennsylvania) : The largest publisher and distributor of children’s books and print and digital educational materials for pre-K to grade 12 in the United States

Scholastic is the world's largest publisher and distributor of children's books and print and digital educational materials for pre-K to grade 12. In addition to Harry Potter and The Hunger Games, the company is known for its school book clubs and book fairs, classroom magazines such as Scholastic News and Science World, and popular book series: Clifford the Big Red Dog, Goosebumps, The Magic School Bus, Captain Underpants, Animorphs, and I Spy. Scholastic also publishes instructional reading and writing programs, and offers professional learning and consultancy services for school improvement. Clifford the Big Red Dog serves as the official mascot for Scholastic.

Scholastic was founded in 1920 by Maurice R. Robinson right outside Pittsburgh, Pennsylvania. As a publisher of youth magazines, the first publication was The Western Pennsylvania Scholastic. It covered high school sports and social activities and debuted on October 22, 1920. In the 1940s, Scholastic entered the book club business. In the 1960s, international publishing locations were added in England (1964), New Zealand (1964) and Sydney (1968). Also in the 1960s, Scholastic entered the book publishing business. In the 1980s, Scholastic entered the book fair business. In February 2012, it bought Weekly Reader Publishing from Reader's Digest Association, and announced in July that year that it planned to discontinue separate issues of Weekly Reader magazines after more than a century of publication, and co-branded the magazines as "Scholastic News/Weekly Reader".

According to wikipedia