Celebrate thirty years of Sandra Boynton's bestselling titles with this keepsake collection of four favorites. Look no further for classic humor in one collection. Housed in an attractive, sturdy box are 30th Anniversary Editions of The Going to Bed Book; Moo, Baa, La La La; Opposites; and But Not the Hippopotamus! Each 7 x 7 board book is filled with humorous, rhyming verses and the ever-whimsical illustrations that have made Sandra Boynton one of America's best-loved artists. Parents love Boynton as much as kids do, and these four books in a compact boxed set make an ideal gift!