I have bought every book I could for spinner fishing, which I've now learned is different from "spin-fishing," or "spinner fishing" if written circa 1990 or earlier. Spinner fishing was the common term used for fishing with spinner reels in general, which is what this book refers to by spin-fishing.
Having said that, this book was surprisingly comprehensive and discusses trout behavior and their location, including the effect of water level and environmental conditions. Diagrams are included, showing trout's distributions and high-yield spots for a fisherman to cast. Patterns for casting are explained and drawn so that maximum water is covered and appropriately directed. Retreival techniques are detailed more extensively then I've seen elsewhere and I am grateful for such comprehensive descriptions of fishing techniques.
Also very helpful is explanations of triggers of bites, such as natural reflexes to flashes and the effects of various colors. The author even delves into physiology of cone light receptors and how they change when trout move into tributaries to spawn. Such is the detail in this book.
From the 6-7 books on fishing I've read lately, this one is one of the best. 5/5 stars.