Workman offers an astounding statistic that does their bottom line proud. Americans consume about 2.8 billion pounds of chocolate per year. That had to be a factor in Anne Byrn's choice of following up The Cake Mix Doctor with Chocolate from the Cake Mix Doctor, The first book, published in November 1999, has just passed the one-million copies in print mark after 20 trips to press. The new book, published in October, has 354,000 copies in print after three trips to press. Byrn was on tour in the fall, visiting six cities. She will resume her tour in March and April and will make appearances in at least 12 cities. Considering all the chocoholics out there, it is no surprise that the author and her book have been the subject, so far, of more than two dozen newspaper features.