The Kindle Edition was not correctly formated, and Part 2 cannot be accessed through the table of contents. Vital information is omitted from Part 2, such as the names of the Drug Class catagories. I spent a number of hours comparing the Kindle edition with the hardcopy, and I had to write down all the Drug catagories from the hardcopy to use with the Kindle Edition. Part 1 was done more correctly, although the Table of Contents will not take you to "Drugs A-Z", you can look up the drugs in the index and find them. It is a shame that so much of the formatting was done well, but Part 2 was very poorly done. There is still enough useable information that I did not return the book, but I would not have bought it in the first place if I knew the problems with Part 2.