As against this final version was no relation to the other books in this series, it looks like any poor math book, with more than brief explanations (sometimes forgetting the half-points of a chapter) and Balance barbars words without explanation. Quasimment methods are not explained, it's just a series of examples not put in context. Could this be the same author as the other books in the collection. Besides, I should have a doubt when I saw that Tom was twice as thick as that of the first when the program is at least as result
In short, mediocre