It’s an extensive course with a lot of new information to digest and a lot of charts to practise. It is very good and helps to read charts better. Yoshiko Sinaga, Singapore
The 24 Mountains By Joey Yap
The basic introduction to the 24 Mountains.
There are generally EIGHT basic directions.
Each direction is subdivided into 3 Subsectors. 8 x 3 = 24 Directions or 24 Mountains.