PaulChiusano简介：
Paul Chiusano and Rúnar Bjarnason are recognized experts in functional programming with Scala. Each has been writing Scala and using FP professionally for several years. Paul is a Scalaz contributor, blogs and speaks regularly on Scala and FP. Rúnar is a principal contributor to Scalaz and the Functional Java library and has been using and teaching FP since 2008.