This is a book I scoffed at until my therapist recommended it (that happens a lot honestly); some really great strategies for positive habit building, especially listing and explaining the necessary factors for keeping up a good habit or quitting a bad one. A lot of it was things I knew (like the strategy of keeping your intended habit visible so it’ll trigger the habit etc) but there were some new ideas, especially habit stacking (combining a new habit with one you already have down to trigger the new habit). Would recommend if you’re struggling to stick to a resolution, just beware of weight talk galore.