Oh yes! I love manga and graphics. Not that I read them though but I love the images, they keep me interested. The only problem is, since I have other things I do for fun, reading a book just doesn’t top the list for me but when I do, I enjoy it more than I expect.
And yeah, a lot of persons see these things as childish but that is also the reason they miss out in all the fun that comes with reading these kind of books. I haven’t tried reading any graphics online tho but I once lived with someone who told me a few stories and it was nice.