Vintage Childcraft The How and Why Library encyclopedia set featuring 12 volumes from the 1980s-1990s collection. This educational series provides a wealth of knowledge for children through vibrant illustrations and engaging text across various subjects. Included volumes cover topics such as World and Space, About Animals, The Green Kingdom, How Things Work, About Us, Holidays and Birthdays, Places to Know, Make and Do, Look and Learn, Mathemagic, and About Me. Each hardcover book features a distinctive colorful spine and illustrated cover, making this a classic addition to any home library or classroom. Perfect for homeschooling, nostalgic collectors, or curious young minds.