Vaskaran Sarcar obtained his Master of Engineering in software engineering from Jadavpur University, Kolkata (India) and an MCA from Vidyasagar University, Midnapore (India). He was a National Gate Scholar (2007-2009) and has more than 12 years of experience in Education and the IT industry. Vaskaran devoted his early years (2005-2007) in teaching at various engineering colleges, and later he joined HP India PPS R&D Hub Bangalore .He worked there until August, 2019. At the time of his retirement from the IT industry, he was a Senior Software Engineer and Team Lead at HP. To follow his dream and passion, Vaskaran is now an independent full-time author. Other books by him include: •Getting Started with Advanced C# (Apress,2020) •Interactive Object-Oriented Programming in Java Second Edition (Apress,2019) •Java Design Patterns Second Edition (Apress,2019) • Design Patterns in C# (Apress,2018) •Interactive C# (Apress,2017) •Interactive Object-Oriented Programming in Java(Apress,2016) •Java Design Patterns(Apress,2016) •C# Basics: Test Your Skills(Createspace,2015) •Operating System: Computer Science Interview Series(Createspace,2014)