This is a very helpful book designed for a broad audience, including intermediate-level electrical engineering or physics students. Louis Frenzel, Jr. is a technology editor for Electronic Design magazine and possesses academic and employment experiences. He indicates that there are a number of reasons to be electronically literate: to satisfy your curiosity, to enhance your hobby as a maker, for job-related needs, to boost your school performance, and to not appear to be stupid. That pretty much includes all of us.

After two introductory chapters concerning the big picture and fundamental physics, the book moves to systems thinking, circuits and digital logic, how microcomputers work, radio and wireless, cellular phones, networking, audio and video, industrial control, software and programming, and soldering. Each chapter contains an introduction, numerous figures, little boxes containing critical-issue sidebars and background information, and projects to test readers’ comprehension and skill. The book’s appendices contain references, project parts needed for each chapter, learning resources, and a comprehensive index.

This second edition updates coverage concerning the Internet of Things (IoT), machine-to-machine technology, Ethernet to 100 Gb/s, Wi-Fi, Bluetooth and other wireless technologies, 5G new radio cellular standards, and microcontrollers and programming with Arduino, Basic Stamp, and others.

I found this presentation to be informative and delightful and recommend it to readers.