Listen up, people: Stocking up on coloring books was the best thing I did last year. From keeping busy on flights to taking an hour to chill, listen to a podcast and color, it’s a form of light entertainment that gets you just the right degree of relaxed. Coloring keeps your hands busy but your mind on a fairly single track; it definitely requires a certain amount of focus. And buying coloring books isn’t just for kids, anymore. There are bigger, better books coming out with intricate designs and room for imagination that anyone can get on board with. Pick your favorite from the list below and consider your mind decluttered.