R. D. Campbell FLIGHT INSTRUCTORS MANUAL.
Peter Phillips and Robert Cole THE FLYING INSTRUCTOR'S PATTER MANUAL.
Additionally, the school you attend for your instructor course will issue you with a set of notes and naturally you'll be taking your own comprehensive notes during the course, The school notes will serve as a basis for instructor standardisation if you go and work for them post-course.
I made up a series of A5 laminated cards with the air exercises on as an aide memoire for the first few times I delivered each flight exercise.
Good luck. The FI course remains the hardest flying I've ever done. I had 500 hours over 20 years SEP flying when I started the course and had all my flying completely deconstructed and put back together again.
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