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| Written by | Emily Perl Kingsley |
| Illustrator | Nancy W. Stevenson |
| Published | 1981 |
| Publisher | Golden Press |
| Series | Sesame Street Book Club |
| ISBN | 0307231410 |
Cookie Monster and Betty Lou enjoy the Circus of Opposites, with Guy Smiley as ringmaster. Various Muppet characters perform different acts; Herry walks the tightrope, showing wet and dry, Frazzle and Barkley show first and last with a line of clowns, and Big Bird and Little Bird with (of course) big and little.
This book features some of the earliest illustrations of a dark orange Elmo, Telly, the Honkers, and Pearl and Deena.