This is a very thorough introduction to the techniques of the drop spindle. There is just enough history and cultural commentary to keep the reader interested and perhaps spark a quest for more information. The meat of the book however is a step by step (chapter by chapter) introduction to spindles, including how to choose different spindles and different techniques for different fibres and finished yarns. Each of the major principles, such as drafting and plying are concisely explained and illustrated with photographs. Potential problems are addressed as they are likely to occur, not before, so as not to discourage you; and not buried at the end of the book so that you have to flick back and forth. There is also a useful chapter on the storage, care and repair of spindles. The three free knitting/crochet patterns at the end of the book showcase three very different yarns that can be created using a drop spindle.
I also purchased the video of the same name from the publisher which really aided my understanding of this book - not essential, but valuable if you can get both together. Overall the tone of both are very encouraging, very clear and beautifully presented.