Ten Years of Purely Functional Data StructuresIn 1998, I published a book called Purely Functional Data Structures. Ten years later, the book is still selling well. (Every time I get a royalty check, my wife the skeptic says “People are still buying that?!”) The ten-year anniversary seems like a good time to reflect back on my experience with this book. Origins My first introduction to functional programming was at Carnegie Mellon University,
