For those like me who like to read and find out how little they truly know about finance, you might like to know about Gaetan Lion, a fellow who has reviewed no less than 318 books to date on Amazon.com. His tastes are eclectic but many reviews are about financial and investing books. His reviews are sometimes lengthy but well composed, perceptive and exacting in their criticisms and praise. He's worth reading to cull the gold from the dross.
Another source with an extensive listing of vetted investing books is the Canadian Bylo Selhi, whose website is also permanently linked from the sidebar of this blog. Though he doesn't actually review the books, given the sensible and and well-reasoned analysis he provides, I'd expect to find a lot of high-quality books on his recommended list.