Zacharias Voulgaris is a data scientist and technical author specializing in data science books. He has an engineering and management background, with post-graduate studies in information systems and machine learning. Zacharias has worked as a research fellow at Georgia Tech, investigating and applying machine learning technologies to real-world problems, as an SEO manager in an e-marketing company in Europe, as a program manager in Microsoft, and as a data scientist at US Bank and at G2 Web Services.
Dr. Voulgaris has also authored technical books, the most notable of which is Data Scientist - the definitive guide to becoming a data scientist (Technics Publications), and his newest book, Julia for Data Science (Technics Publications), was released during the summer of 2016. He has also written a number of data-science-related articles on blogs and participates in various data science/machine learning meetup groups. Finally, he has provided technical editorial aid in the book Python Data Science Essentials (Packt), by the same authors as this book.
I would very much like to express my gratitude to the authors of the book for giving me the opportunity to contribute to this project. Also, I'd like to thank Bastiaan Sjardin for introducing me to them and to the world of technical editing. It's been a privilege working with all of you.