Negative Positive
Title: Kindle version is impossible to use
Review: I agree with a previous reviewer. The Kindle version is impossible to use, because it has no table of contents or index or any way to look up a term. If you search for "prime number" for example, you get 75 hits but there is no indication which one is the definition. Recommend that unless this book is tagged with a table of contents that you stick with the paper copy.
Is the review positive or negative? 