In addition to my Goodreads Reading Challenge, I try to do another challenge every year to read books I wouldn't have picked up normally.
In 2015 I did the TBR-Jar-Challenge. This year I thought about doing the Popsugar Reading Challenge. I'm so glad that they published a Challenge again this year so I can participate.
I hope I can read a book for all 40 challenges. We'll see ;)