Join Our Monthly Map Club! Good policy rests on good data. At the Tax Foundation, we take great pride in being the nation’s go-to source for tax data, education, and policy solutions. One of our favorite tools for making taxes fun and easy to understand is our tax map series, which covers a range of topics from sales taxes to state reliance on federal aid. Now, with our Monthly Map Club, you can receive a new map in the mail every month! Our Monthly Map Club is totally free and will guarantee that you stay informed about your state’s tax climate and how it compares to the rest of the country. Impress all your friends with your vast knowledge of tax policy, sign up for our Monthly Map Club below! Fill out my Wufoo form!