Say what you like about Mary Berry and Delia Smith their recipes are well tested and work!
Ken Hom introduced me to Thai fusion and as a result I took the plunge and started cooking the real thing.
Love Claudia Roden's middle eastern recipes and those of Diane Henry in Crazy Water Pickled Lemons.
Valentina Harris for Risotto
Adhul Kochhar and Anjum Anand for Indian meat dishes and Manjula for Indian vegetarian
I have a very ancient Chinese cookery book which I inherited, written by Ken Lo and I also loved Gok Wan's tv programme.
For good old British cookery I like Nick Nairn and Simon Rimmer but also refer constantly to another book I inherited which came along with an old rellies cooker in the days when cookers came along with thick books giving recipes for every occasion, every type of dish and and every ingredient. Soups, starters, sauces, fish, meat, vegetarian, cakes, pastry, biscuits, invalid cookery, cold puddings, hot puddings, egg dishes, jam and preserves and more are all there.
Don't know who wrote it - but these good old recipes work.