Source code for the book examples for the folks who have kindly purchased the book (lining my pockets, $1.50 at a time). Chapter 3 (the US map example). Chapter 4 (time series with milk, tea, coffee consumption) Chapter 5 (connections & correlations – salary vs. performance) Chapter 6 (scatterplot maps – zipdecode) Chapter 7 (hierarchies, recursion, word treemap, disk space treemap) Chapter 8 (gra