As a someone inexperienced but keen to learn about the use of flash for macro scale subjects like insects and plants, I found this book almost no use at all. The book is preachy in tone about the issue of setting flash controls manually rather than using modern SLR cameras' intelligent flash exposure programs (for example, Nikon's is called i-ttl, the other manufacturers have equivalent systems). For macro photography of moving subjects, manually setting flash and camera settings will give good results if you are willing to experiment, with other subjects the i-ttl settings can work nicely. However you would not guess any of this from the images in the book which are to my mind almost all very poor (overexposure, contrived 'arty' compositions, often less depth of field than is imposed by the optics of close up photography for subjects that need it, and so on). There is a lack of solid information, but a lot of opinion here. I wouldn't have bought this book if I'd been able to have a look at it in a bookshop first. Not at all recommended.