I'm on keto and I use 2 cookbooks currently. Ketosis Cookbook: Melt The Fat Away, because it has more than 370 keto recipes, and Transforming Recipes: Ultra Low Carb Edition.
Hey guys! If you are bored of going scavenger hunting online before every cooking, I suggest you to take a look at this LCHF cookbook.. It saved me a lot of time and effort in my diet.