Dr. David R. Brooks is the president and founder of the Institute for Earth Science Research and Education, Eagleville, PA, USA. He was formally a research professor at Drexel University, Philadelphia, PA, USA. He is the author of a number of successful Springer titles, including Guide to HTML, JavaScript and PHP, An Introduction to PHP for Scientists and Engineers, An Introduction to HTML and JavaScript, C Programming, and Problem Solving with Fortran 90.