Mark Williams is one of the four co-authors of the excellent 'The Mindful Way Through Depression: Freeing Yourself From Chronic Unhappiness', and in many ways this book covers the same territory as that guide. Solidly based on scientific and academic research it also updates the information in the earlier book - setting the guidance in the context of current advice from NICE (the UK National Institute for Health and Clinical Excellence), for example. Williams has long been associated with research into the causes of depression and anxiety both at Bangor and Oxford University, and the writing, although easy to read, feels sound and well researched.
In some ways the book even improves on 'The Mindful Way Through Depression', simply by the fact that it feels less like a book written by a committee, even though the general tone is somewhat lighter and accessible. Its emphasis and language is also more British, especially on the accompanying CD guide, which Williams narrates. So, on balance, it's a slightly easier book to read (possibly as a result of the journalist Danny Penman's help), perhaps a little less weighty, but an excellent and very up-to-date guide and support for anyone wanting to investigate mindfulness meditation, especially in the context of depression and anxiety.
The CD is worth the price on its own - again, based on Jon Kabatt-Zinn's exemplary mindfulness CDs; very accessible, but probably perfect for someone starting out on this route. Thoroughly recommended; Mark Williams does a great service to the cause of a non drug based approach to combating depression, but it's also the perfect starting place to understand mindfulness, whatever the reason.