Real World Microsoft Access Database Protection and Security
By Garry Robinson
Rarely do you find an MS Access book that delves into security in a way that re-thinks the whole "User Level Security" thing. There are countless third-party tools out there that break ULS wide open. Garry understands that all too well and has come up with a plan that is understandable and usable, not just some round-about homegrown security that fails when the Bypass property is set to True.
Micrsoft Office Access 2010 Inside Out
By Jeff Conrad and John Viescas
Publisher: Microsoft Press
As far as I'm concerned, this is the one book you must have for Access. With all the changes made to Access 2010, working with previous versions will not be enough. The book is loaded with stuff you need to know now, not someday. You won't have to wade through pages and pages of stuff you already know. Unlike many books on Access, this one has meat in all the right places, including how to create a custom Ribbon.