As a general cookbook, I really like The Complete America's Test Kitchen Cookbook. They update their books every year after each season, and mine is several years old, but it still has a great range of advice and ideas. My go-to cookbook, though, is Flavor It Greek!: A Celebration of Food, Faith, & Family, which was published by a Greek Orthodox Church Philoptochos group many years ago. I love compilation cookbooks because they have a lot of personality that some bigger, published books don't have. When I look online, I typically start with Natasha's Kitchen. 

My mother collected all of her recipes, and those passed down to her, in a leather-bound book. Each recipe was handwritten in the bound book, but not necessarily in any particular order. I have kept the leatherbound tradition for myself, but instead of one that is bound, I have one that is more binder style (entitled My Favorite Recipes). I handwrite some recipes completely, but I also have a lot of recipes gathered over the years that I have printed out and then added handwritten annotations (e.g, add more cayenne or less milk, or how to double or halve the recipe). I like the binder format so I can keep recipes organized thematically. I include cocktail recipes in this book, too! My husband has really appreciated this system, and when he likes a new recipe, he asks me if I have added it to the book. He will sometimes go in and add his own annotations or make copies when people ask about a recipe I might make for a dinner party or potluck.