Completely revised new edition with numerous new contents and updates. New in the signal book is, among other things, the chapter on Gauge 0 and a detailed treatment of signal bridges. The new Viessmann signal book of the third generation offers many tips on the topic of signals. Over 160 pages in practical A4 format provide information about the history of signals and tips for prototype and model railway compliant installation. Comprehensive wiring plans offer ideas for switching options. Additionally, it includes a basic course on electricity. The signal book is suitable for AC, DC, and digital railway enthusiasts alike. It is fully printed in color and contains numerous illustrations.