Just adding that I too found a significant amount of grammar and spelling mistakes in this book (I assume they are spelling mistakes in this electronic version and not the original). They are not enough mistakes to make this not useful but more than enough to be disturbing and throw someone off significantly for a couple of vocab words and paradigms. I was using it for Seminary Hebrew 1 and Hebrew 2 classes, so I have been reporting every typo as I go. I hope they take these notes seriously and correct it. Judging by other reports over a year ago I am concerned that maybe they have not. Hopefully soon! As a Grammar on Biblical Hebrew it is okay, though I prefer Pratico and Van Pelts Basics of Biblical Hebrew as being more clear, having a better learning order, being more user-friendly, and having a better approach to memorization.