Regarding Sherwood and Chabay, while I can't speak for them, the text was
not designed for self teaching, but the original version, which was more
like a workbook would be better than the current version.
It is an excellent text for developing a good understanding of electricity
and magnetism.
Joseph J. Bellina, Jr. 219-284-4662
Associate Professor of Physics
Saint Mary's College
Notre Dame, IN 46556