Carole Katchen has been a professional and successful artist and author for more than 40 years. You can find her work in private and public collections, including the collection of Bill Clinton, the former president of the United States. Carole has published 17 books, which have sold over 1 million copies and she has written numerous magazine articles for Cosmopolitan, Parents and several art magazines. She is also a Contributing Editor to The Artists Magazine and a featured columnist for International Artist. Carole uses all sorts of art mediums, but most of the time she uses soft pastels. On her website you can find an article about her technique and a couple of demos.
Below are links to a some of her books available at Amazon. If you wander why I give links on the Amazon, it is because I get a 4% commission from any sales done through my Soft Pastel Store or through the provided links :).