Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Introduction to Electrodynamics

This book gets two stars because it is exceptionally readable. That is its sole redeeming quality. As a textbook it is a failure.The test of a text is simple--A reasonably intelligent and mathematically prepared person should be able to start at the beginning, read the text, work the examples and then be prepared to solve the problems at the end of the chapter.This text so ill prepares you for the end problems that if you can solve them, you probably didn't need the text in the first place. The examples given are simple, rudimentary compared to the later solutions asked and principally unconnected. When an example is complex, such vast leaps in mathematical continuity are found that one must question whether the author just looked up the solution somewhere and jotted it down.