Len Kiefer

Helping people understand the economy, housing and mortgage markets


  1. Bivariate tilegridmaps with R

  2. Facet my geo!

  3. Animate a bivariate choropleth

  4. Bivariate choropleth maps with R

  5. Let's Pixelate America

  6. House prices are highest in coastal metros

  7. Populous metros are heavy!

  8. More map visualizations

  9. U.S. county population: 1790-2010

  10. Maps, mortgages and me