Forgotten Books: DISCOVERING THE MALTESE FALCON AND SAM SPADE (2005)

This amazing volume is packed with so much information I'm tempted to say it's everything you'd  ever want to know on the subject. But after 342 two-columned, small-print pages, it provides a list of over ninety more suggestions "For Further Reading." 

In fact, there is so much cool stuff in this book I despair of even attempting to describe it all, and will resort instead to overwhelming you with the table of contents. Beyond that, be it known that there are many, many photographs, reproduced articles and manuscript pages, letters, advertisements, magazine and book covers, movie posters, and miscellanea. 

Suffice it to say that for Hammett fans (and if you're not one, you should be) this is one hell of book. You'll get your money's worth, and then some.