My daughter ordered this book in the kindle version, thinking she would be able to do the word puzzles on her kindle, however, the kindle version is just a copy of the hard copy version of this book. You can't actually do any of the word searches, as it won't let you select letters or words in the puzzles. So basically you have to look at the word list and then try to guess where the words are, which is fine. However, there is no way to mark the words once they are found so you never feel like you've done the puzzle! My daughter was very disappointed that she paid $10 for a book that doesn't work on her kindle. She was used to sudoku puzzles on her kindle which actually let you complete the puzzle. So, Kindle users, give this a pass!! I'm sure this is a great word search book, but don't buy it for the kindle! Hard copy only!