The mind needs stretching and exercise just like the muscles in your body. According to cognitive neuroscientist Maryanne Wolf, groups of neurons create new connections and pathways among themselves every time we acquire a new skill. If you want to feel the burn, now is the perfect time to start a daily mental workout. This inspiring journal offers a quote and a prompt or activity for every day of the year to help you expand your self-knowledge and flex your brain with word, number, and optical puzzles. It's non-dated so you can start on any day you like—pick a page that engages you! Daily doses of wisdom from famous writers, philosophers, musicians, MacArthur "genius" grant winners, inventors, artists, entrepreneurs, and more will inspire you to make exercising your brain part of your routine.