The purpose of this new work is twofold: first, to enable the user to move from understanding basic electronics to understanding how electric theory relates to practical electronic measurements, and second, to give the user knowledge of what instruments are available, their advantages and disadvantages, and how to choose the right class of instrument for a particular job. It provides a breadth of coverage not readily found elsewhere, including functional descriptions of voltmeters, ammeters, ohmmeters, signal sources, oscilloscopes, frequency counters, circuits for electronic measurements, frequency domain instruments, and logic analyzers. This volume will be of practical use to electrical engineers and technicians who understand basic electronics and want to learn more about electronic measurements.