First published in 1980, it contains short definitions and sample sentences for around 1300 words, each accompanied by an illustration featuring a character from Sesame Street.

[3][8] Depending on the age and educational level of the reader, the book can expand a child's vocabulary, help with "reading readiness" and function as a first dictionary.

[3][6] The dictionary was first published in 1980 by Random House, in conjunction with Sesame Street producers Children's Television Workshop, in both a hardback edition and a special library binding.

[6][7] Writing in the School Library Journal, Daisy Kouzel described it as "exploding with good fun", adding that "youngsters will find unending entertainment in its big, colorful pages and will enrich their vocabulary in the process.

"[11] Barbara Safford's Guide to Reference Materials for School Library Media Centers listed it as "highly recommended".