Answer:
What can be seen but never found that only hides in the unwound?
A house full, a yard full, a chimney full, no one can get a spoonful.
This is needed both for courage and hardcover books.
What has two spines and a lot of ribs, and carries much but never moves?
My first is high, My second damp, My whole a tie, A writer's cramp
What is always coming but never arrives?