Nourai, Dr Ali: - While pursuing a technical career, Dr. Nourai spent 12 years studying etymology of English and Persian words. His engineering background helped him organize and document the etymological data he had collected and make computer-generated flow charts or family trees of words and their roots. The main reason for using this unique and unconventional graphic approach is to make it easier for readers to "see" the derivation of words in different languages without needing to read in those languages.