A professional investor and blogger, who I think is honest and sensible, has reviewed a number of books at
http://alephblog.com/categorized-book-reviews/ . Books for aspiring Chartered Financial Analysts are at
http://www.cfapubs.org/loi/inv .
Books by or about famous and infamous investors can be interesting and informative -- I suggest books by David F. Swensen (successful manager of the Yale endowment), by Peter Lynch, Roger Lowenstein's "Buffett: The Making of an American Capitalist" and "When Genius Failed: The Rise and Fall of Long-Term Capital Management", Jack Schwager's "Market Wizards" books, and "More Money Than God: Hedge Funds and the Making of a New Elite" by Sebastian Mallaby.