This book is a reference for all the jigsaw puzzlers who enjoy speed puzzling and want to benchmark themselves against the best puzzlers in the world. Learn some practice tips to improve your speed. 15 practice sheets with a space for your personal notes and some reference times (best completion time, average completion time and qualifications' cut time) so you can keep track of your progress, compare yourself to the best jigsaw puzzlers and estimate your ranking. Happy speed puzzling!
