"The Heart of Worship, compiled by Matt Redman with input from Louie Giglio, Mike Pilavachi, Tim Huges, Chris Tomlin, Graham Kendrick, Brenton Brown, Brian Doerkson, Darlene Zschech, Charlie Hall, Don Williams, Chris Jack [London Bible College], Steve Nicholson [Vineyard] Les Moir, Martytn Layzell, etc." There is some great content which Matt Redman is editing/compiling. The book's core audience is aimed at lead worshippers/musicians, etc. One third of the articles are of a practical nature - a lot are biblical insights into worship so the book has a wider appeal than worship leaders only. With input from the likes of Louie Giglio, Don Williams, etc., that is the case.