Pro Android with Kotlin

xvii
About the Author
Peter Späth, Ph. D. graduated in 2002 as a physicist and soon afterward became an IT 
consultant, mainly for Java-related projects. In 2016 he decided to concentrate on writing 
books on various subjects, with a primary focus on software development. With a wealth of 
experience in Java-related languages, the release of Kotlin for building Android apps made 
him enthusiastic about writing books for Kotlin development in the Android environment.

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xix
About the Technical 
Reviewers
Marcos Placona is a developer evangelist at Twilio and a GDE. 
He serves communities in London and all over Europe. He is 
passionate about technology and security and spends a great 
deal of his time building mobile and web apps and occasionally 
connecting them to physical devices.
Marcos is a great believer in open source projects. When 
he’s not writing open source code, he’s probably blogging 
about code on 
https://androidsecurity.info
, 
https://
androidthings.rocks
, or 
https://realkotlin.com
.
He’s also a great API enthusiast and believes they bring peace 
to the software engineering world.
Massimo Nardone has a master of science degree in 
computing science from the University of Salerno, Italy, and 
has more than 24 years of experience in the areas of security, 
web/mobile development, cloud, and IT architecture. His IT 
passions are security and Android.
Specifically, he has worked as a project manager, software 
engineer, research engineer, chief security architect, information 
security manager, PCI/SCADA auditor, and senior lead IT 
security/cloud/SCADA architect.
He has also worked as a visiting lecturer and supervisor 
for exercises at the Networking Laboratory of the Helsinki 
University of Technology (Aalto University), and he holds four 
international patents (in the PKI, SIP, SAML, and proxy areas).

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