I don't usualy write review, but this book really helps me. I now know and remember 200 kanji (writing and meaning), thanks to Heisig and my determination. The kanji are ordered by memory difficulty and not by usefulness. It is muck easier to learn that way! You will learn the kanji for gall bladder before the one for sister, water, etc. which may seems strange, but it's really a good way to remember them. I don't think I could learn all the joyo kanji wihtout Heisig's method.