Just finished Building Multicoptor Video Drones. I thought it was excellent especially for someone like myself who wants to build their first multicoptor. Best of all it goes into enough detail to do an actual build without bogging you down into too much detail. I made it through the book surprisingly fast. Covers all of the major components and systems to build a multicoptor to include airframes, motors, propellers, ESCs, guidance systems, gimbals and transmitters. The book also highlights FPV (First Person View) gear as well as camera flying techniques. Although the book walks the reader through a build for a specific hexacoptor, the same concepts and many of the same components could be applied to just about any multicoptor. I also liked the introduction to the online Multicopter Calculator to adjust your design and optimizing the many options for component selection to maximize flight time. Just the right amount of theory and practical knowledge required to get into this hobby/profession seriously through a build-your-own route. However do understand this is a book for a serious hobbyist or someone who wants to build their own multicoptor for aerial photography or video. It requires some basic mechanical and electronic skills. But even if you have limited skills in these areas I think the book will help anyone who takes their time to follow the instructions carefully. Also please note that although you can save money and get more bang for your buck building your own multicoptor vs. buying a similar setup, it is an investment either way for a quality craft. But for me I also like the satisfaction of building my own and knowing how to fix my own craft when something goes wrong.