Ron Cody, EdD, is a retired professor from the Rutgers Robert Wood Johnson Medical School who now works as a private consultant and national instructor for SAS. A SAS user since 1977, Ron's extensive knowledge and innovative style have made him a popular presenter at local, regional, and national SAS conferences. He has authored or co-authored numerous books, such as Learning SAS by Example: A Programmer's Guide, Second Edition; A Gentle Introduction to Statistics Using SAS Studio; Cody's Data Cleaning Techniques Using SAS, Third Edition; SAS Functions by Example, Second Edition; and several other books on SAS programming and statistical analysis. During his career at Rutgers Medical School, he authored or co-authored over 100 articles in scientific journals.