Generally, so are those by the larger publishers (not so the "self-pubbed", which are often just ripped off gutenberg ocr scans).
Ripped off from Gutenberg I can live with as a complaint. But please don't knock Gutenberg, which is proofread and consistently formatted. I know, I have done some. Simple, plain vanilla, yes. In order to be available, free, to everyone on any computer however obsolete.