This two-volume, fundamental and in-depth work on analog and digital circuit technology offers a clear presentation of the subject matter along with extensive learning aids. It is particularly suitable for beginners and for self-study or distance learning. A multitude of detailed worked examples, exercises with comprehensive solutions, key points, and chapter summaries facilitate learning, as do the numerous illustrations and tables. The work originated from a lecture at the Fernuniversität Hagen. The second volume covers the construction and circuits of operational amplifiers, digital circuits (gate families, flip-flop types, decoders/encoders, multiplexers, minimization methods), as well as connection lines.