Homayoon Beigi is the Professor of Professional Practice at the Electrical Engineering and Mechanical Engineering departments of Columbia University. He also heads the research and development of Recognition Technologies, Inc. He earned his Bachelors, Masters, and Doctorate from Columbia University in 1984, 1985 and 1991 respectively. He is the author of the first and only comprehensive textbook on Speaker Recognition, a 1000+ page textbook which has been downloaded over 100,000 times and was voted by Book Authority as the top 100 Computer Science books of all time. For over three and a half decades he has been conducting research and development in learning-adaptive control, neural network learning, biometrics, pattern recognition, speech, speaker, face, object, emotion, and language recognition, as well as Internet-Commerce, and more. He has developed the award-winning RecoMadeEasy® Recognition Engine, and the multiple-award winning, CommerceMadeEasy® software. He has taught at Columbia University since 1995 in the fields of speaker, speech, handwriting, signal recognition, and control theory, in the EE, ME, and CS departments of Columbia University and has advised PhD students in the Civil Engineering department. In 2023, he was selected as one of only 11 finalists for the 5 Presidential Awards for Outstanding Teaching across all Columbia University faculty. He has been leading research at Recognition Technologies, Inc. since 2003, 22 years as the president and currently as the head of research. He was a Research Staff Member at the IBM T.J. Watson Research Center from 1991 to 2001, working on speaker recognition, automatic speech recognition, natural language processing, online handwriting recognition, search, control, and Neural Network Learning.