This is a new challenge for me, but one close to my heart as a librarian.
Here is the hosting page for this challenge.
The challenge runs for the 2016 calendar year. You have to read books that have been banned or challenged. No jurisdictions are specified, but I'll generally be going with U.S. and Canada. The hosting pages gives links to some lists for this. Both ALA and CLA have lists. Books may be in any format or genre. They may overlap with other challenges.
There are five levels for this challenge. I will be going for the second level, Trouble-Maker at 3-5 books.