We studied the clues to sleuth out the best Agatha Christie books for mystery lovers. Here are the author's top 15 works.

From classics to modern masterpieces, these great poetry books—recommended by poets themselves—belong on your bookshelf.

The most viewed stories on this website over the last week included an auction of books personally inscribed by philosopher Karl Popper (1902-94) which were dropped off by an anonymous donor to Oxfam.