The Deal $27 for a set of 12 First Encyclopedia hardcover books ($155.88 list price). 

Each set includes the following titles: Birds, Body, Bugs, Cats, Dinos, Dogs, Earth, Rocks, Sea, Sharks, Space, and Weather. 

Free shipping 

I have been very happy with all the books I have purchased through
Groupon for my children 

This is a great deal

Groupon Goods