If you are professionally trained, bake for people with similar credentials, have a lot of time on your hands--and a masochistic streak--then use this book. I like a challenge, have been baking for 35+ years, and almost never part with a cookbook; but I'm thinking of donating this one to charity. But then I wouldn't want to foist it on someone else. . . maybe with a warning: "For bookshelf decoration only." The Lemon Butter Bars were a major disaster for me; many recipes seem created for maximum difficulty. I've heard of others who have similar feelings about it this book.