Gavin D. J. Harper (born 1986) is a technology author based in Cardiff, Wales.
He left school aged 16 before studying for A levels. Aged 17 he enrolled on an Open University degree course in technology and, at the same time, started writing his first book 50 Awesome Auto Projects for the Evil Genius. He later studied for a master's degree in sustainable architecture with the University of East London.. He read for his PhD at Cardiff University .
Domestic Solar Energy: A Guide for the Homeowner - Crowood Press, ISBN 978-1-84797-060-2Small Scale Wind Power Generation (Co-Author with Jamie Bull) - Crowood Press, ISBN 978-1-84797-210-1Run Your Diesel Vehicle on Biofuels (Co-Author with Jon Starbuck)- Mc Graw Hill Professional, ISBN 0-07-160043-4Holography Projects for the Evil Genius- Mc Graw Hill Professional, ISBN 978-0-07162-400-8Fuel Cell Projects for the Evil Genius - Mc Graw Hill Professional, ISBN 0-07-149659-9Solar Energy Projects for the Evil Genius (Foreword By Willie Nelson)- Mc Graw Hill Professional, ISBN 0-07-147772-1Model Rocket Projects for the Evil Genius- Mc Graw Hill Professional, ISBN 0-07-146984-2Build Your Own Car PC- Mc Graw Hill Professional, ISBN 0-07-146826-950 Awesome Auto Projects for the Evil Genius. Mc Graw Hill Professional. ISBN 0-07-145823-9. L'energia Solare E Le Sue Applicazioni Cinquanta Progetti Pratici. Hoepli. ISBN 9788820341213科学鬼才:全息技术应用41例. 人民邮电出版社 ISBN 9787115287885酷车电子产品制作DIY:50项目. 科学出版社 ISBN 9787030185747과학영재를 위한 50가지 태양에너지 프로젝트. 
