Meet John Piper:
"When you finish a book, what system have you developed in order to remember and reference that book in the future?
I index books as I read them, by writing short notes in the front of the book with page numbers beside them. In a good book there may be over a hundred such notes.
Currently, what sport do you like to play and/or watch?
I enjoy watching gymnastics, soccer, basketball, and football, in that order. If my back weren’t so stiff I would love to play racquetball. When our staff goes away we play volleyball and floor hockey."