I see that most of you have no problems posting photos and book covers on your blog post. I, on the other hand, don't seem to be able to transfer a cover image from my files (jpeg) to the blog. And nowhere in "Help" is this problem addressed. Neither does the "Upload Photo" method explain why there is an "error" with my image and what to do about it.
(And sorry to blog about it, but I didn't know what other route to take)