It’s hard not to share in the excitement of what author Pat Mora calls “bookjoy” in this celebration of children, books, and reading to mark “ El día de los niños/El día de los libros ” (Day of the Child/Day of the Book). The jubilee begins: “Hooray! Today is our day. El día de los niños! Let’s have fun today reading our favorite books. Toon! Toon!” The narrator of Book Fiesta! notes that books come in many languages, and reading can take place in many places: in cars, on planes, on trains, even at the library! Children can share books with family and friends, with puppies and kittens and lizards—even the moon can listen. The power of books to transport readers on marvelous journeys is also undeniable: “We read riding on an elephant / or sailing with a whale.” Mora’s text, in both English and Spanish, is set again fanciful illustrations by Rafael López that underscore the delight of books and reading. (Ages 3–6)