The book is often met with skepticism by parents and educators coming into contact with the system for the first time, particularly from those of us who didn’t struggle to learn our times tables when we were young. But the reviews speak for themselves. Since its publication in December 2017, the book has become a number one best seller on Amazon and has received literally hundreds of testimonials and reviews from teachers and parents sharing stories of how it helped their children – in many cases, when other methods had failed.