Today's advent entry is another useful tool, for writers who want to design their own e-book covers. Because let's face it, while being able to hire someone to make art for you is great, sometimes it's not possible or affordable. Canva lets you do all the work yourself, and comes with handy tutorials. Mostly it's free, although some of the pre-designed layouts and custom bits have a (small) price tag. Obviously pay for any pictures you bring in from stock sites or the like.