There are some formulas which only appear in example problems and never in the text. The questions from the back are organized by subpart but frequently use parts of info "taught" in future subparts. There are some "standard values" listed in various tables which conflict both those posted in Wikipedia and the ones my instructor uses. The "use this chart to find the value on the curve" are tiny charts with low resolution and ridiculously unusable. The example problems never have units on them making it difficult to follow along. There are constants which are used in examples (and, worse, needed for book questions) which are never discussed at all.But, hey, you don't have a choice, do you? So just go ahead and buy it.