Marko Devcic is a software engineer currently working as an Android developer for an Austrian company called mySugr in Vienna. He has a master's degree in engineering from the University of Zagreb in Croatia. Over the years, he has worked with various technologies and languages, mostly C#, Java, and Kotlin.

He is passionate about technology and software development. He loves reading about programming languages.

In his spare time, he writes codes and contributes towards open source projects. You can follow him on GitHub (username deva666). He also likes to write about Kotlin, C#, and programming in general on his web page. When he is not behind a computer, he's practicing Brazilian Jiu-Jitsu or spending time with his son.

Mitchell Wong Ho was born in Johannesburg, South Africa, where he completed his national diploma in electrical engineering. Mitchell's software career development started on embedded systems and then moved to Microsoft desktop/server applications. Mitchell has been programming in Java since 2000 on J2ME, JEE, desktop, and Android applications, and has more recently been advocating Kotlin for Android. Mitchell made a significant contribution to the development of the Kotlin Programming Cookbook, which was published recently by Packt.

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