Check-out Phil's 'Professional Helicopter Pilot Studies' resource:
(Click on book cover for more details)
(Click on book cover for more details)
Based on the author's EASA approved ATPL(H) modular distance learning course, this book provides all the material required for the EASA exams, including the PPL(H), CPL(H) and ATPL(H), plus a few extras, like the Instrument Rating. The book has been specially designed for the needs of professional or military pilots seeking to gain an alternative licence, but newcomers to the industry can use it, too, since it assumes no previous knowledge.