I used this book in Spanish class and it was very useful. I wanted to have it available when I was traveling and taking classes abroad, so I bought it for the kindle. My problem is not the book, it is the way it is formatted in Kindle. First of all, the list of verb forms are in EXTREMELY small type even with the largest typeface is set on Kindle. That makes it really hard to look at to study or find a certain verb form. Secondly, there is no way to type in a verb and look it up like you would use the interface with a dictionary. This feature would be really helpful, but alas, it is not there. The only way to access your verb is to look it up via the table of contents and the verbs are not all listed in the same area so you have to keep searching. When doing homework, this is fine when you can span through pages but tabbing in the Kindle makes for extremely frustrating work. It is a real shame that such a powerful tool for the student does not have a more reasonable and well thought out interface. I hope that a few programming changes take place and make this book worth it's usefulness in Kindle. Until that happens, I highly recommend against purchasing this book for Kindle.