When I studied physics at the university, our undergraduate textbooks where relatively thin volumes (e.g. Alonso&Finn I-III), whereas the engineering students had these massive textbooks (Young&Freedman etc.). When looking into these massive tomes, yes, they spend a lot of words, but also they apparently don't expect the reader to be able to apply calculus. So instead of showing, say, Coulomb's law, and assuming the reader is capable of integrating to calculate the interaction between a point charge and a line, they have a section describing the interaction between two point charges. Then an entirely separate section describing the interaction between a point charge and a line, with the formula as given without actually explaining that, hey, this formula, you know, results if we take the fundamental law and do this and that. Incredibly infuriating.