The original. Accept no substitutes!
The adventures of a bear and his friends in the woods. With Christopher Robin presiding over all but not often getting into the action until after Pooh gets into a pickle.
Lightsome, episodic tales with a few bits of continuity -- most noticeably, of course, when Kanga and Roo arrive in the first book, and Tigger in the second.
Reading it as an adult makes it easier to pick up the childish mistakes, such as what the North Pole is and whether there is a East Pole, but on the whole, it's still the same tales as when I read it as a child.