Aravind Shenoy is an in-house author at Packt Publishing. An engineering graduate from the Manipal Institute of Technology, his core interests are technical writing, web designing, and software testing. He is a native of Mumbai, India, and currently resides there. He has written books such as An overview on Apache Hadoop, JavaScript: Web Designing Fundamentals, and CSS Essentials in a Nutshell and articles on various technologies.; " Gianluca Guarini is a 25-year-old web developer, with strong design skills, working currently in Zurich. He was born in Avellino, a sunny city in the south of Italy, and he grew up designing things and playing video games from an early age on a Commodore 64. He graduated in Psychology of Communication in Milan and has worked collaborating with small web agencies as a freelancer, always searching for new projects to enhance his skills."