Duncan Hines, Bake Shop in a Book, 1979: An almanac of great taste from America’s favorite baking mixes. Published by in 1979 Procter & Gamble, New York, in association with Culinary Arts Institute, Chicago. 184 pages plus 12 divider pages labeled with the months of the year. The divider pages are still at the back of the book. The directions for moving the divider pages are in the front, on the copyright page. The recipes–usisng basic Procter & Gamble cake mixes–are just lucious. The food photography is perfect. This cookbook was never used.
See VintageCookbook’s recipe page (here: Duncan Hines Bake Shop in a Book) for the February recipe for Valentine Dessert Squares.