ORSHOSKI, Paul . My Sitter Is a T-Rex! illus. by Jeffrey Ebbeler. ISBN 978-1-60115-253-4 ; ISBN 978-1-60115-254-1 . ea vol: 44p. (We Both Read Series). Treasure Bay . 2011. Tr $9.95; pap. $4.99. LC number unavailable. K-Gr 2 In the first book, Jack has a playdate with a toddler. He tries to be a good host, but he just can't find any activities that the two can share because of the difference in their ages. Finally, he realizes one thing they can do: they can be friends. The colorful, comiclike illustrations are inviting, but can't save the bland, repetitive text. The concept of "We Both Read" is highly recommended for parent and child, but this book is not. My Sitter Is a T-Rex! is similar to Dr. Seuss's Cat in the Hat. Todd has an unusual babysitter who constantly but accidentally makes a mess. The story, told in rhyme, is funny, as is the expressive, colorful art, making it a worthwhile purchase for adult/child sharing. Elaine Charnow, Deasy/Landing Elementary Schools, Glen Cove, NY