The FAST was developed in the UK in 1998 by a group of stroke physicians, ambulance personnel, and an emergency room physician and was designed to be an integral part of a training package for ambulance staff.
âAnonymous. There are no hard-and-fast rules on how long or short a chapter needs to be. It could be three pages. It could be 22. It could be 40. You shouldnât set manuscript guidelines for yourself on chapter length.
Indeed the market you are writing for is important. Children's books tend to have shorter chapters: I found 2,500 words a good length. It gave me 30 odd chapters for a 70,000 word book, which is pretty common. My WiP however is full of very short chapters as I am interweaving four different stories. So I would say chapter length is project specific.