I found this difficult to read, too many misspellings. I downloaded a free copy from [...] and it is much better.Their FAQ states: "Why are there so many typos in my paperback?We created your book using OCR software that includes an automated spell check. Our OCR software is 99 percent accurate if the book is in good condition. However, with up to 3,500 characters per page, even one percent can be an annoying number of typos. We would really like to manually proof read and correct the typos. But many of our books only sell a couple of copies so that would add hundreds of dollars to the cover price. And nobody wants to pay that. If you need to see the original text, you can download a copy for free."