My mother, then a non-cook, married in England 1944 and dived in at the deep end, mainly consulting Ministry of food leaflets
The Cookbook was initially the New World Cookbook, then the Radiation Cookbook (or possibly the other way round)
New World and Radiation were the main manufacturers of gas stoves, and a new gas stove came with a hardback tome of recipes and advice, nearly every kitchen I knew contained one.
The book served as a manual for the stove, showing you how to break it down and clean it, a repository of hints - how to store excess fats for use, what to save for the hens etc. Tgere were many recipes of course, many very plain food, but with clear timings. The two combined in features that taught you to cook an entire dinner of meat, vegetables and hot pudding (dessert) in the oven.
Some of the recipes were good, and a lot of the things I do without checking a recipe probably come from there. But it undoubtedly taught my mother to overcook meat
When TV and newspaper cookery really got going my mother did broaden her horizons, and moved on to Fanny Craddock, Delia etc