My first cookbook was the same one given to my mum when her & my dad got married, which is the Dairy Book of Home Cookery! It's no longer published as far as I'm aware, although old copies abound, and it's still my favourite as it has basic everyday recipes such as soups, bread sauce, pancakes, bread & butter pudding, custard, pizza bases, scones, omelette, stew, pastry, cakes & biscuits etc. Mine being the 1970's one even has fondue recipes (still use the cheese one!)!
I much prefer it over any of the modern chef books as it tells you everything & has simple everyday foods, not the kind if thing you might cook once in a blue moon; it even tells you how to store foods, how long for, what can/can't be frozen, how to defrost food etc. The recipes are really easy to follow as well, I've not known anyone go wrong with them. It's the one cookbook I wouldn't be without, well that & my Madhur Jaffrey ones. It's my food bible!