Browsing books and DVDs on Freestyle training for my young Collie - I've never heard of Mary Ann Nester - she certainly hasn't won any top competitions that I've heard of! If I'm going to buy something I'd like it to be by someone that really has got to the top in a sport. I'd highly recommend the Tina and Chandi DVD Teach your dog new tricks - I'd seen them at Crufts before they were on Britain's Got Talent and these are the kind of experienced team I want to learn from - four Crufts titles to their name, no other Freestyle dog can lay claim to that record! I thoroughly enjoyed their DVD - not strictly speaking a Freestyle DVD, but Tina shows how to teach loads of tricks both simple and complex that she uses with Chandi. Pays to shop around for the best! No offence to Mary Ann, whoever she may be!