Very nice book with great tips. Able to amaze my friends with my advanced mental prowess :)Published 5 hours ago by Don Delgado
Great book to stimulate your brain. It really opened my eyes and learned things that had never knew. It has improved my math skills quite a lot.Published 15 days ago by Norman Stgeorges
What I studied I really liked, haven't had too much time to study morePublished 26 days ago by Ystap741
I love this book! It is teaching us a lot about math that we never learned in school but should have!Published 29 days ago by Carol B.