Priceless: How I Went Undercover to Rescue the World's Stolen Masterpieces
A quick read: breezily written, exciting, somewhat shallow, moderately informative, unapologetically subjective, and written (I feel sure) with one eye on a future TV or movie deal.
I'm tempted to compare Priceless to Bringing Down the House, except that Bringing Down the House is heavily fictionalized.
For actual fiction, Aaron and Charlotte Elkins have written two good series of art-crime mysteries. The Chris Norgren books (A Glancing Light, A Deceptive Clarity, and Old Scores) are straight mystery/thrillers. The more recent Alix London series (A Dangerous Talent, A Cruise to Die For, The Art Whisperer, and The Trouble With Mirrors) edge over toward the "romantic suspense" category.