J.D. Ortiz would like to thank Sam Kachigan for writing such a readable introduction statistics book. Nick Pisias made his statistical software and class notes available, these served as part of the inspiration for this website. Wiliam Prothero was kind enough to provide access to his online statistical materials and textbook. Douglas Martinson provided helpful advice on structuring the course. Finally I would like to thank those who first interested me in these methods and helped to make them understandable: John Imbrie, Warren Prell, Nick Pisias, Alan Mix, Dudley Chelton and Fred Ramsey.