The 2nd or 3rd definition of potpourri is usually something like "miscellaneous collection" and one can get desperate for alternate words for "diversity". So here is a potpourri of somewhat recent books.
792.93 THOMSON The Whole Equation: A History of Hollywood (the business of making movies)
629.892 MALONE Ultimate Robot (from Fritz Lang's Maria to GoBots)
813.54 LE GUIN The Wave in the Mind: talks and essays on the writer, the reader, and the imagination (essays)
781.64 SANTORO Highway 61 Revisited: The Tangled Roots of American Jazz, Blues, Rock and Country Music
Painful to read but fascinating:
974.71 DWYER 102 Minutes: The Untold Story of the Fight to Survive Inside the Twin Towers
And here is a quick way to get definitions/rhymes/homophones/consonant matches etc. Please note - this is not a good way. For far better definitions click on the Merriam-Webster link at the bottom of the definitions results page, use the Ask Oxford and Merriam-Webster extensions in your Firefox search bar, or best of all - come into the library and use the searchable DVD version of the complete OED.