A Book of Hours

A Book of Hours is the tenth studio album by Bob Ostertag, self-released on June 9, 2013.

Personnel
Adapted from the A Book of Hours liner notes.

Musicians
 * Bob Ostertag – sampler

Additional musicians
 * Theo Bleckmann – voice
 * Shelley Hirsch – voice
 * Phil Minton – voice
 * Roscoe Mitchell – saxophone