I recently attended a lecture at 'The Exhibition of the Universe.' David has a wealth of knowledge which he delivers with great passion and enthusiasm in an articulate and well informed manner. 'The Children of the Stars' book and dvd collection is not only the perfect complement to hix exhibition but a brilliant 'stand-alone' product for those unable to attend in person. These are eloquently presented and researched to such an extent that will give even the most sceptical person food for thought. This set is a must for anyone with an interest in this area. Highly recommended.