Belén Cruz Zapata received her engineering degree in Computer Science from the University of Murcia in Spain, with specialization in software technologies and intelligent and knowledge technologies. She has earned an MSc degree in Computer Science and is now working on her PhD degree in Software Engineering Research Group from the University of Murcia.

Belén is based in Spain; however, due to the field of her PhD, she is now collaborating with Université Mohammed V - Soussi in Rabat. Her research is focused on mobile technologies in general and also applies to medicine.

Belén has worked as a mobile developer for several platforms, such as Android, iOS, and the Web. She is the author of the book on Android Studio: Android Studio Application Development, Packt Publishing.

To follow her projects, she maintains a blog at http://www.belencruz.com and you can follow her on Twitter at @belen_cz.

Antonio Hernández Niñirola has an engineering degree in Computer Science and is a mobile application developer. He was born and raised in Murcia in the southeast region of Spain and is currently living in Rabat, Morocco. He has developed several websites and mobile applications.

After completing his degree in Computer Science, he pursued a Master's degree in Teacher Training for Informatics and Technology. Antonio pushed his studies further and is now a doctoral candidate under the Software Engineering Research Group of the faculty of Computer Science at the University of Murcia, and is actually a researcher for the Université Mohammed V - Soussi in Rabat.

You can visit his website at http://www.ninirola.es to find out more about him and his projects.