Blended STEM fiction - 3/$10! discount ship! Leonardo gets a do-over

3/$10 sale! Choose or "like" 3 listings that say 3/$10! I will send offer for $10 + shipping discount. Must bundle 3 sale books to get deal! NO OFFERS ON 3/$10 deal. Want more than three? Try adding more and I'll weigh. 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.