It Was a Short Summer, Charlie Brown is the sixth prime-time animated television special based on the comic strip Peanuts, created by Charles M.

As summer vacation begins, Charlie Brown, Linus, Schroeder, and Pig-Pen enthusiastically plan to indulge in comic books, television, baseball, and classical music.

As the new school year begins, Charlie Brown struggles to compose an essay assigned on the first day after he and Linus are caught playing hangman in class.

Among the notable additions to the cast was Pamelyn Ferdin, Robbins's co-star on Blondie, replacing Sally Dryer as Lucy, who instead voiced minor roles.

[3] The score was performed by the Vince Guaraldi Decet on September 11–12, 1969, at Western Recorders, featuring Monty Budwig (double bass), Herb Ellis (guitar), Jack Sperling (drums), Victor Feldman (percussion), Frank Rosolino (trombone), Conte Candoli (trumpet), Pete Candoli (trumpet), Peter Christlieb (woodwind) and William Hood (woodwind).

Paramount Home Media Distribution released the special along with You're Not Elected, Charlie Brown as part of the Snoopy Double Feature: Volume 3 compilation on August 17, 1994.