From Wikipedia:

Woodblock printing is a technique for printing text, images or patterns used widely throughout East Asia and originating in China in antiquity as a method of printing on textiles and later paper. As a method of printing on cloth, the earliest surviving examples from China date to before 220, and from Egypt to the 4th century. Ukiyo-e is the best known type of Japanese woodblock art print. Most European uses of the technique on paper are covered by the art term woodcut, except for the block-books produced mainly in the fifteenth century.

This illustrated 1916 edition describes the technique.

Thanks for this. There are a fair number of art related books on Project Gutenberg and I've wondered how they might look on the Sony, but I hadn't got around to formatting any.

You're welcome, Stanart. I'm working on a few more art titles although I haven't yet decided myself whether it's worth the effort to generate them for eink readers. If you look at this one and conclude that the images are or aren't good enough to be useful, please let me know.

I loaded the book onto my Sony and given the limited gradation range of the device I think the book looks good. The illustrations at the beginning of the book, which I assume are mostly line drawings, look great and the reproductions of prints at the back of the book look as good as can be on this small device. Thanks for a job well done.