I've updated my study guide for the technician exam to include the new questions in the 2018-2022 question pool. The text explains the material in easy-to-understand terms. Most students can pass the test after reading the book a single time. The book has an average Amazon review of 4.5 stars after 38 reviews. The Kindle edition is only $3.99, and it's available as a paperback for $12.95. I have more information at this link: http://www.w0is.com/StudyGuide/technician.html Also, if you know anyone who studied for the test using an old study guide, that same link contains a list of all of the new questions. There are only a couple of new topics covered, and anyone who used an older study guide should have no trouble with the new test, especially if they look through the new questions.