Darryl Cunningham has written a comic about evolution. It’s very good indeed. I particularly like the way I kept thinking “Hm… He’s made too big a leap there, I can already think of some objections the loonies will make about that.” And then in the next panel he deals with those objections.
I don’t think I’ve seen a simpler, more cunningly put-together introduction to evolution. It draws heavily on the examples we’re all familiar with and I’m pretty sure I can tell what books Darryl read when he wrote it
You should also read his other work, including the excellent Psychiatric Tales, which you can buy in print form at places like this.