Those who are interested in the intricacies of supply-side economics will find Jude Wanniski's Supply Side University a useful site for understanding the concepts of this theory. Wanniski, a well-known supply-side advocate, maintains SSU as a free "weekend school in supply-side economics," where the subject is taught in a political context. Included at present are four essays and 23 lessons ranging from It's Time to Cut Taxes, to The World Trade Deficit, to Say's Law of Markets, to Two Kinds of Deflation (or Inflation). Much of the content is derived from Wanniski's articles in The Wall Street Journal and from his well-known book The Way the World Works. Lessons are driven by user questions, and Wanniski encourages "economists trained in Keynesian or monetarist theory [to] sneak in without embarrassment."