3 for $10 book sale! Blended STEM fiction - Leonardo gets a do-over

3 for $10 book sale! Choose or "like" 3 books from sale. I will send offer $10 offer. Must bundle 3 to get deal! No offers on 3/$10 deal. Want more than three? I'll honor $3 price each on additions up to 5 lbs. Educational book on Leonardo Davinci, ages 10-14. Middle grades. Good, clean, used condition educational 2014 paperback with light cover wear. Weaves academic concepts into an inventive and entertaining story. Kid's will love the interweaving of fact and fiction.