Here's a great look at Pie from Modern Farmer who have created their very chart on how to eat seasonally with pie.
It starts with a wheel of seasonal ingredients added a specific pie filling to each month of the year, it then offers up a recipe for each month, pecan in January - lemon in March and so on.
On top of the seasonal chart and recipes the great post also offers up information on the different kinds of pies that can be made, from signal crust to the more intricate lattice crust pie, with tips on how each style is made.
This is the ultimate Pie Chart of Pie.
