It's a whole lot of fun. And great to see the utterly different approaches given in the solutions, I love the a-ha moments, and this provides a nice collection of them. RL;"Geometry Snacks, a deliciously tasty, pocket-sized puzzle book by Ed Southall and Vincent Pantaloni. The idea behind the book is to show that problems can be solved in several ways, which means that, say the authors: "once a puzzle is solved, there are further surprises, insights and challenges to be had." Alex Bellos, The Guardian; Geometric reasoning is joyful and beautiful. Memorising the difference between complementary and supplementary angles... rather less so. Geometry Snacks doesn't shy away from the vocabulary of geometry, but its focus is squarely on the key ideas.;"It's a gorgeous little book (16cm by 16cm, 80 pages), with a stylised doughnut on the front to represent the bite-sized problems inside. It's in five sections, covering "find the fraction" puzzles, angle-finding, proofs, areas and sangaku, lovely 17th- to 19th-century Japanese puzzles largely involving circles.; What makes it special for me is the clarity and elegance of the diagrams. Careful use of grey and red shading generally makes it obvious what they're asking for; a lot of thought has gone into making the pictures pop..." The Aperiodical
