I won this through the goodreads first reads program. I received an uncorrected proof. I don't like the title, but I did like the book. It's best read as a memoir. She made a list of 40 challenges to complete before turning 40. Number 40 was to write a book. Most of her list, I've already done or I'm not interested in doing. The reasons she had not already done the things on her list were internal reasons and I think more of my reasons are external (mostly money and time.)It's vaguely inspirational, but doesn't give much direction or help with making your own list. I've started some life lists on Pinterest, but I haven't added to them in a while.