Consumer and producer surplus are useful concepts for explaining many points of microeconomic theory and policy. Applications include gains from trade in both domestic and international markets, the incidence and excess burden of a tax, and the deadweight loss from externalities.
Unfortunately, producer and consumer surplus are not always explained well in introductory micro textbooks. One problem (this applies to my own text as much as to others) is that there is only room in a conventional textbook for a limited number of graphs. A slideshow format works better because you can explain the concepts step by step, building your graphs piece by piece as you go along.
I wrote a slideshow-tutorial on consumer and producer surplus several years ago when I was teaching an MBA economics course in Zagreb, but I never posted it anywhere for easy public access. Earlier today, while I was working on my post and slideshow on the soda tax, I realized it would be useful to make the consumer and producer surplus tutorial available as a backgrounder, so here it is.
Follow this link to view or download a classroom-ready slideshow-tutorial on consumer and producer surplus