I got the Campbell book from the library (put a card in, costs you £1) and then took the FIC with OnTrack, so got their manual as part of the course.
The OnTrack manual is excellent and I use it for all my board briefs and refer back every so often now I'm actually working. Well worth the money even if you don't do the FIC with them.
The Campbell book is very thorough, but perhaps too much, a bit too dry to try and digest after a day on the FIC course.