Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Detailed coverage with some errors

This is an excellent starting point for studying the transistor implementations of digital logic. It has detailed derivations which are not difficult to follow and give the reader a deep understanding of how such circuits work. After going through a few derivations, you should have no trouble deriving the characteristics (i.e. voltage and time) of many logic circuits.However, these derivations have some errors. If you are diligent, you will catch them, and it is actually good practice to do so. Still, it gets frustrating. Read with caution. Also, the problems are decent but a bit too easy overall.