At the Gift Fair this past summer, I admired these “Green Start” Book Towers (available in Nursery Rhymes or Little Vehicle Series). Each set of 10 “block books” features early learning concepts like counting, opposites, shapes, and more. Made from 98% post-consumer recycled materials and printed with eco-friendly ink, the books are safe for ages 2 and up (and are awfully fun to stack, too). A perfect toddler birthday gift. Buy a set for $14.99 at Innovative Kids.