QiYi Secret Tutorial for Magic Cubes
Tutorials that are alright
This booklet gives tutorials which are suitable for beginners, however, does not cover most speedcubing methods.
Good pan flip
A bit confusing but has a lot of great tutorials.
Full of useful information
I really like how the book has every F2L, OLL and PLL algorithm for the 3x3. It's guidance on how to solve a 2x2 was not the best but I think it has amazing information that is very cheap.