Kirk Paul Lafler is consultant and founder of Software Intelligence Corporation and has been programming in SAS since 1979. As a SAS Certified Professional and SAS Institute Alliance Member (1996 – 2002), Kirk provides IT consulting services and training to SAS users around the world.
As the author of five books including PROC SQL: Beyond the Basics Using SAS, Second Edition (SAS Institute 2013) and PROC SQL: Beyond the Basics Using SAS (SAS Institute. 2004), he has written more than five hundred papers and articles, been an Invited speaker and trainer at three hundred-plus SAS International, regional, special-interest, local, and in-house user group conferences and meetings, and is t...