I started sharing about Charlie and his blog/website Wesley Bros last week. You may want to start there first.
I was curious about Charlie’s process. When you read the comics, you will notice that he is able to include a lot of historical and theological details, while keeping the characters in a modern-day setting. I asked him where he gets his inspiration every week:
I usually jot down ideas when they come to me. I do a lot more research into church history and John and Charles Wesley now that I do this comic. I read Wesley’s sermons, I read histories of Methodism, Wesley’s journals, Charles’ hymns and the stories behind them. If I can find irony or humor in what I read, I scribble out ideas and get started.