The big book of Trigons: 300 puzzles (Trigons Puzzle Books) Paperback – 5 July 2016

I love Djape’s puzzle books - they’re suitably difficult and challenging to keep me busy for some time, and they’re usually printed on good quality paper (important if you need to erase and start over). However, this is a particularly big book, and also somewhat heavy, which makes it awkward to hold when doing the puzzles, and fairly painful for my hands and wrists after a while. My preference is usually to fold the puzzle book back on itself, so that I can hold it with one hand while working on it with the other, but with the size of this one that doesn’t really work. And also the puzzles are printed too close to the spine, so you also end up with part of the grid curled away from you. A different binding - lay flat, or spiral bound - would be more convenient and comfortable on a volume of this size.Also, quite a large section is given up to the solutions, which seems unnecessary - why not remove them entirely, and make them available online instead?The puzzles are great though, and I can’t get enough of Trigons at the moment.