Wiley's Romeo and Juliet works beautifully. As is their stated mission, having the image, plus the written text to look at slowly enough to decode, makes understanding the whole work way easier than reading a play, and requires less suspension of disbelief than watching modern actors in a movie (or play for that matter). I lay in my hammock completely enthralled until I had to get up and do something for someone. I plan to show my kids' school librarians, and also everyone else I know.
Although this was not the publisher whose books I bought, I followed a link left in a comment to classicalcomics.com. Cool for their current titles, their plans, and lots of ideas about manga classics. (See "links to writers" here on my blog.) I'll being trying their Macbeth as soon as I can get my hands on it.
The marigold wonders nervously:
Will I embarrass myself with a new passion?
Incidentally, brilliant use is made of the graphic format by Marisa Acocella in Cancer Vixen: A True Story. Awesome book. In particular I found that the graphics add emotional weight to the sense of the long-drawn repetition of treatments. Writing alone could not convey the point with interest.