Book reviews — Volume 5, Issue 6 by Coaching at Work | Nov 7, 2010 | Book-review | 0 comments Book reviews — Volume 5, Issue 6 Title The Happiness Project Author Gretchen Rubin Publisher HarperCollins ISBN 978 00615 8325 4 Usefulness To read more please either login or subscribe. Submit a Comment Cancel replyYou must be logged in to post a comment.