Airframe and Powrplant Mechanics - General test guide12/16/2022 ByMarc B Very happy with purchase. The test guide is well laid out; easy to reference questions and answers with good explanations. Questions are on one side of each page with the answers and explanations on the reverse side. Printing and paper quality is much better than some of the other test guides and I find this one easier to use as well as the explanations more complete. I bought this with the Skyprep package which I'm finding excellent for test preparation.