I purchased three books and this has to be the best of them (please see other automata book reviews)
It is designed with a wire-binding so makes a very workshop friendly book for reference and being able to be laid flat and stay put! Like many of these genre, you are presented with lined drawings so this is not a book of kit designs for copy - you will still need to develop your own design ideas, planning and working through your shapes and wire connections to facilitate movement. That said it does uncover much of the magic of 'how automata stuff works' much better and more clearly than most other books (in my opinion)
I also like the more compact size personally, again it makes for better reference in confined workshop space and is just handier to handle?? if that makes any sense at all!
Great to dip into, light hearted but covers much of the mechanics of automata with plenty of alternative solutions provided and indeed questions posed to the reader for further testing and examination.