The Correct name of the book is A Grief Observed by C.S. (Clive Staples) Lewis, noted Christian apologist and the author of the beloved children's fantasy series "The Chronicles of Narnia". ISBN 0060652845
The book is a series of his thoughts (recorded more or less chronologically) on the death of his wife, Joy Gresham Lewis from cancer. It's a powerful and moving book; I recommend it to anyone.
For a better understanding of the life of C.S. Lewis and especially his relationship with his wife, I recommend renting the movie "Shadowlands". C.S. Lewis is portrayed by oscar winner Anthony Hopkins, and Joy Gresham Lewis is portrayed by Debra Winger. An excellent film. [The original version, with Joss Ackland and Claire Bloom, was also fine.] For more on C.S. Lewis, see http://cslewis.DrZeus.net/.
-- KyleBrown