As soon as I started this book, I thought that it was exactly what I was looking for. It gives practical examples and a linguistic, technical explanation. I sat down to start on what I expected to be a lengthy read. Unfortunately, I finished in a very short time. This book is only 69 pages. SIXTY NINE PAGES! That's all. What is there is well done, but this seems like one short chapter of what should be a very long book. I'm terribly disappointed that I paid this price for such little material.