This comprehensive four-part tutorial guides users through building a real-time mapping and geolocation tracking application for Android devices using the Google Maps API and PubNub. The tutorial begins by setting up the Android environment and integrating essential components like Google Maps and PubNub for real-time messaging, allowing for the streaming of location data to update maps dynamically. It covers creating necessary API keys, setting up project credentials, and configuring the Android application with required permissions and libraries in the build files. By the end of the series, users will have developed a basic location-tracking app featuring live map markers, device location tracking, and flight paths. The tutorial emphasizes the seamless integration of Google Maps' mapping capabilities with PubNub's real-time communication features, showcasing their combined effectiveness for geolocation applications. Users are encouraged to clone the provided code from a GitHub repository and adapt it within Android Studio, with guidance on running and debugging the application on both emulators and physical devices.