Bill Handley
Bill Handley has written at least 2 books. Their most popular book is Speed Mathematics: Secrets of Lightning Mental Calculation with 1 save with an average rating of -⭐.
They are best known for writing in the genre Mathematics.
Bill Handley has written at least 2 books. Their most popular book is Speed Mathematics: Secrets of Lightning Mental Calculation with 1 save with an average rating of -⭐.
They are best known for writing in the genre Mathematics.
2000 • 1 Reader • 220 pages
