As
Salon reminded me this morning, 2008 marks the 100th Anniversary of
The Wind in the Willows. This is not merely a classic of children's literature; it is, quite possibly, the furriest book of all time.
Read it online, or pick up a copy for the holidays -- it's public domain, so you can find any number of inexpensive editions.
I first read it at the age of 38, and found that, despite being undeniably a book about Youth, it also has much to say to Adulthood and Middle Age.