Johan Borestad lives and works in Stockholm, Sweden. With 10 years of experience in several successful start-ups, he has built up a deep knowledge of the industry. As a very outgoing and pragmatic perfectionist, he is constantly seeking new ways to improve himself and his team members. While always striving to deliver world-class products, Johan also enjoys telling bad jokes and drinking way too much coffee.

He is currently working at Klarna, building the Klarna Checkout. It is a multimarket, single-page application that is revolutionizing the e-commerce business currently. Its strong focus on usability and simplifying the buying process has made it a huge success in the Nordics and Germany. He has previously also reviewed Express Web Application Development, Packt Publishing.

Mohit Goenka is a Software Developer in the Yahoo! Mail team. He graduated from the University of Southern California (USC) with a Master of Science degree in Computer Science. His thesis emphasized game theory and human behavior concepts as applied in real-world security games. He also received an award for academic excellence from the Office of International Services at the University of Southern California. He has showcased his presence in various realms of computers, including artificial intelligence, machine learning, path planning, multiagent systems, neural networks, computer vision, computer networks, and operating systems.

During his tenure as a student, Mohit won multiple competitions, cracked codes, and presented his work on the Detection of Untouched UFOs to a wide range of audiences. Not only is he a software developer by profession but coding is also his hobby. He spends most of his spare time learning about emerging trends and grooming his technical skills.

What adds a feather to his cap are Mohit's poetic skills. Some of his poems are part of the University of Southern California Libraries archive under the cover of The Lewis Carroll Collection. In addition to this, he has made significant contributions by volunteering his time to serve the community.

Arjunkumar Krishnamoorthy is a Principal Engineer with Causeway Technologies in Bengaluru, India. He is well-versed in Java, JavaScript, Node.js, and Angular.js, among others. He has contributed to open source projects. He is passionate about programming, research, and open source technologies.

Dave Poon is a UX/UI designer, web developer, and entrepreneur based in Sydney. He started his career as a freelance graphic designer and web designer in 1998 and worked with web development agencies and medium-size enterprises. After graduating from Central Queensland University with a degree in Multimedia Studies and a Master's degree in IT, he began his love affair with Drupal and works for a variety of companies that use Drupal. Now, he is evangelizing good user experience and interaction design practices to start-ups and enterprises.

Currently, he is a Design Lead at Suncorp, one of the biggest financial institutions in Australia. He is also the cofounder of Erlango (http://erlango.com), a digital product development and design start-up, located in Sydney and Hong Kong, that creates user-centered digital products and tools for designers and users.

He is the author of Drupal 7 Fields/CCK Beginner's Guide, Packt Publishing. He is also the technical reviewer of Drupal Intranets with Open Atrium, Tracy Smith, Packt Publishing, and Advanced Express Web Application Development, Andrew Keig, Packt Publishing.