Books in a library are in order. Every book has an address.

The address is the call number.

The call number of easy fiction (make-believe) books starts with an E. Then there are 3 more letters from the author's name like BRO for Brown.

These book are in ABC order by the author's name.


The call number of a nonfiction book has numbers in it. The numbers stand for subjects.
The books are in number order.

Practice ABC order with this game.alphabet_Order.png

Practice number order with this game.