I have done several April A to Z Blog Challenges in the past few years. Last year I signed up at the very last minute (CRAZY). This year, I won't be participating. Why? I plan to have the first draft of book three in my Klondike Mystery series, "Almost a Touch", written by the end of April (hopefully before). That leaves no spare time for the challenge.
But I will follow a few blogging friends who participate annually. It's always fun! I know some folks who only blog for this event!
You don't have to be a professional writer or photographer or cartoonist or artist or anything else to participate. You can post on a theme or you can post randomly. The key is to post every day. Many do it daily, others, like me, write in advance and schedule their posts (that leaves more time to read other blogs).
I encourage everyone to give it a try...