When you read a book, you are not confined to a single time or place, as you are when trapped at a concert, or, heaven forbid, a play. The encounter of writer and reader through the printed page is a far more elegant and less oppressive transaction than that. The writer has a chance to compose herself at leisure, to become far more intelligent and appealing than she could ever be in real time. The reader, for his part, can approach the book as he likes, picking it up, putting it down, pausing, re-reading, skipping, at will.