Hey bro, couple of things
don’t end a cycle and go straight into a cut (I’ve made this mistake before). You’ll simply lose everything you gained and more (as your hormones are out of whack). You need a 3-5 month maintence period at the end of a cycle (if anything eating just a really small surplus) to maintain that new growth. Then cut.
And for nutrition, nothing works better than learning Marcos, cooking technique and designing your own food. I use cookbooks simply for inspiration and then adapt the recipe for my requirements. Very few recipes contain enough protein for example. Most contain extra calories that some simple changes can take out (if you know what you are doing). Steaming/sous vide/boiling instead of frying for example, using a light four coating instead of breadcrumb, using cauli rice instead of normal rice are all ways to reduce calories for example. By the same notion, making better choices on the fats you use, cooking veg so it’s tasty AF rather than bland (oven baked broccoli with salt pepper and paprika on is game changing if you don’t like broccoli), batch cooking/prepping all help you get more of what you need.
read the forums and you’ll find loads of tips. I wouldn’t just rely on a cookbook for that stuff