Toddler book of shapes and Islamic traditions: From a crescent moon to a square garden to an octagonal fountain, this breathtaking picture book celebrates the shapes-and traditions-of the Muslim world. Toddler book by author Hena Khan: Sure to inspire questions and observations about world religions and cultures, Crescent Moons and Pointed Minarets is equally at home in a classroom reading circle and on a parent's lap being read to a child.