Ajay Ohri has been working in the field of analytics since 2004 , when it was a still nascent emerging Industry in India. He has worked with the top two Indian outsourcers listed on NYSE, and with Citigroup on cross-sell analytics where he helped sell an extra 50000 credit cards by cross-sell analytics .He was one of the very first independent data mining consultants in India working on analytics products and domestic Indian market analytics. He regularly writes on analytics topics on his website www.decisionstats.com and is currently working on open source analytical tools like R and analytical software like SAS.

Joshua Wiley has implemented R in several laboratories on multiple campuses of the University of California system to run statistical analyses and produce high-quality graphics. He also uses it for data processing in descriptive and inferential statistics. He is currently working towards his Ph.D. at UCLA, where he researches Health Psychology. In addition to his own work with R, Mr. Wiley has led tutorials for other psychology researchers on using R, and is an active member of the R-help mailing list.