I had completely forgotten about this range of books, until I rediscovered them on eBay.
Patrick Bossert was a child prodigy who first wrote a book in 1981 (At age 13) about the Rubiks Cube ‘You can do the cube’, along with a graphical notation, designed to be easily understood by novices. He featured on many kids TV programs in the UK in the early to mid 1980s demonstrating how he solves the puzzle.
Philippa Dickinson is the former head of Penguin Books.