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Happy 30th Birthday to Jump, Frog, Jump!

Fueled by the caffeine and an unexpected delivery of mixed nuts, the Greenwillowites gather for a celebratory game of leapfrog to mark the 30th anniversary of Jump, Frog, Jump! by Robert Kalan, illustrated by Byron Barton. What a great book!

Leapfrog Greenwillow

Jump Frog Jump GreenwillowRobert Kalan is the author of Jump, Frog, Jump!, as well as many other books for young readers, including Moving Day, illustrated by Yossi Abolafia; as well as Rain and Blue Sea, illustrated by Donald Crews.

Byron Barton is the author and illustrator of many books for children, including Jump, Frog, Jump!, My Car, Building a House, and a series of board books: Big Machines, Dinosaurs, Tools, and Zoo Animals.


  1. cindy says:


    yay, nuts?

  2. cindy says:

    oh no, all my inane tweets are
    showing up on the sidebar!

    this is bad news, very very bad news.

  3. Tania says:

    Happy 30th Birthday! OMG! You guys are sooo much fun!!! This brought a smile to my face. Thank you!

  4. Susan Lightfoot says:

    I am a colleague of Robert Kalan when he taught elementary school in the 1970’s. I would very much like to get in touch with him. If anyone could give me an address or e-mail, or forward my name and e-mail to him, I would very much appreciate it.

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