As seen on the blog:

Dear humans,

The female has joined forces with her cover designer, Rebecca Frank, to put together a charity raffle for an autographed collection of the female's books. To enter, you need to pop onto Facebook and join Rebecca's group, find the charity raffle post, and follow the instructions.

When you join the group, tell Rebecca that RJ sent you when you're answering the questions. (It is a group designed for authors to see and purchase cover art, but she's opening the doors for the female's fans to have a chance to participate in the raffle.)

A comment will get you a single entry to the raffle, and every dollar donated to the NAACP Legal Defense Fund is another entry. Here is the website: https://www.naacpldf.org/

You will need to screenshot your donation and post it to the charity post for it to count as entries for the raffle.

Thanks for being such awesome and kind humans!

~Zazzle and Princess