My two favorites of the year also make it to my all-time favorites list, so I would highly recommend them to anyone and everyone:
* Nonfiction: Animal, Vegetable, Miracle: A Year of Food Life
* Fiction: The Disreputable History of Frankie Landau-Banks
And there are a few more I'd recommend to specific folks...
For the Kids (or Kids at Heart)
* Feathers
* Flush
* Olive's Ocean
* The Penderwicks on Gardam Street (start with The Penderwicks)
* The Tales of Beedle the Bard
* Theodosia and the Serpents of Chaos
* The Underneath
For the Teens
* The Disreputable History of Frankie Landau-Banks
* Rebel Angels and The Sweet Far Thing (start with A Great and Terrible Beauty)
And go ahead and read the Twilight series. It's not the best stuff in the world, but it's fun as hell.
For the Aspiring Writers
* How to Become a Famous Writer Before You're Dead: Your Words in Print and Your Name in Lights
* No Plot? No Problem! A Low-Stress, High-Velocity Guide to Writing a Novel in 30 Days
* Writer Mama: How to Raise a Writing Career Alongside Your Kids
For the Expecting or New Parents
Yes, I know you're tired and/or have a lot to do. But these are all worth it, I promise.
* Baby Minds: Brain-Building Games Your Baby Will Love
* Baby Signs: How to Talk with Your Baby Before Your Baby Can Talk
* The Diaper-Free Baby: The Natural Toilet Training Alternative
* Good Nights: The Happy Parents' Guide to the Family Bed (and a Peaceful Night's Sleep!)
* The Happiest Baby on the Block: The New Way to Calm Crying and Help Your Newborn Baby Sleep Longer
* Nursing Mother, Working Mother
* The Vaccine Book: Making the Right Decision for Your Child
For the Other Parents
* Unconditional Parenting: Moving from Rewards and Punishments to Love and Reason
* Waiting for Birdy: A Year of Frantic Tedium, Neurotic Angst, and the Wild Magic of Growing a Family