About the Reviewers

Alejandro Duarte has been coding since 1994, when he was 13 years old, using languages such as BASIC, C, C++, Assembler, C#, PHP, Java, Groovy, and Lua. He focuses mainly on Java technologies for enterprise applications, but always keeps an eye on the video game development industry and technologies. He has contributed to several open source and closed source projects based on Cocos2d-x, Processing, Irrlicht Engine, and the Allegro library.

Alejandro has worked for companies in Colombia and the United Kingdom as a software developer and consultant. He is the author of Vaadin 7 UI Design by Example Beginner's Guide, Packt Publishing, and maintains several open source projects hosted on GitHub.

You can contact him at <alejandro.d.a@gmail.com> or through his personal blog at http://www.alejandrodu.com. If you are feeling social, you can follow him on Twitter at @alejandro_du.

Sergio Martínez-Losa del Rincón is a computer engineer who loves programming languages. From his high school days, he has been learning about programming and computer interactions. He is always learning and discovers something new every day.

He likes all kinds of programming languages, but he focuses his efforts on mobile development with native languages such as Objective-C (iPhone), Java (Android), and Xamarin (C#). He also builds Google Glass applications at work as well as mobile applications for iPhone and Android devices. He also develops games for mobile devices with Cocos2d-x and Cocos2d. He is fond of cross-platform applications too and was the reviewer for the book, Learning Xamarin Studio, William Smith, Packt Publishing.

He loves challenging problems and is always keen to work with new technologies. More information about his experience and details can be found at www.linkedin.com/in/sergiomtzlosa.

Germán González Rodríguez is a software engineer with an MSc in Telecommunications Engineering and over 5 years of experience working as a game, app, and web developer on Windows, Mac, iOS, and Android platforms. He has had a passion for programming video games since an early age. In school, he checked out hundreds of library books and typed in thousands of lines of BASIC code to make text adventures on his father's old 386 computer.

After he completed his degree, he worked with an independent video game developer, Lemon Team, based in Alicante, Spain, until he became a freelance software engineer. In that time, he had successfully shipped games on the App Store, Google Play Store, Amazon Appstore, and Windows Store, with more than 2,000,000 installations combined for companies such as Amazon Game Studios and FreshGames. At present, he lives in the US and tries to promote sustainability practices as a game developer at a non-profit organization, Cool Choices, based in Madison, Wisconsin.

I would like to thank my wife, Patricia, for her love, support, and patience. I love you. Also, thanks to my parents for always being there. I am who I am today because of you.