Here is the advice that AA9PW gives to people who want to study for their amateur radio license.  (Note: his website let’s you answer random questions for practice but does not teach the user anything)

His comments are exactly how we are looking at the potential of the GW books fitting into our assortment.

“The ARRL Ham Radio License manual gets consistently excellent reviews on Amazon and provides a great introduction to the theory and materials you’ll need to know, plus it introduces the relevant exam questions as you work through the chapters. The Gordon West (W5YI) Technician Manual works a little differently, covering each question with detailed explanations of the possible answers. This has less introductory material and background than the ARRL book so would be a good test prep review book and a good complement to the ARRL manual, however, perhaps not the best single book to get if this is your first introduction to the hobby.”