white book is from the class and has questions at the end of each chapter. blue book is not from the class and has no questions. Although, blue book is in color and white book is black and white😀... and blue book has a section for the pat, wherewhite book does not... although that section is pretty useless as far as strategy, it's still more practice.
Other than that, I have compared the two side by side and there is almost no difference.