When the book If the World Was a Village by David J. Smith came out in 2002, I was intrigued. The author imagined the world as a village of 100 people and then he showed how many would have enough to eat, safe places to live, money to spend and how many would have less. The book is visually appealing and makes the sharing of the world's resources accessible to young readers.
A second edition of the book will come out in February, 2014. Order your copy now!
Check out David Smith's website, Mapping.com, for lots of free info on geography.