Wolter Seuntjens has provided a much needed scholarly, critical review and synthesis that will be important to all researchers and scholars pursuing the topic of yawning. He brings together previously scattered work, provides useful translations and has discovered new sources. The test is an impressive, well-written contribution that should become a classic. Dedicated copy of paperback in as-new condition.Inscription is \'To Jane - W Seuntjens\' Book number 2 of the second edition of 100 copies.