He is

Every one of these can be learned by heart

Every passage climbs nine rungs, from recognising it among others to writing it out from the reference alone. A passage that keeps slipping stops being tested and gets built up instead — seven techniques, one at a time.

1. 1. Which passage
2. 2. Which concept
3. 3. Which one was it
4. 4. In order
5. 5. Next word
6. 6. Tap the gaps
7. 7. Type the gaps
8. 8. First letters
9. 9. From memory