In his blog, Sharepoint Joel offers a list of really helpful books that can help you get up to speed with Sharepoint 2010:
Whether you're a project manager, developer, admin, content manager or designer, you'll find these books to be invaluable references as you get acclimated to Sharepoint 2010. Do you have additional Sharepoint 2010 resources that you'd like to share with other users? Let us know!
Managing Editor, Content 911
Managing Director, Flair Interactive Services Inc.