This document discusses the 4 pillars for cloud development on Google Cloud Platform (GCP): Google Compute Engine, Google Kubernetes Engine, Google App Engine, and Google Cloud Functions. It provides an overview of each service, including what they are used for and example use cases. The document is presented as a slide deck discussing infrastructure options on GCP and how the different services can be used for developing and deploying applications on the cloud in order to make them highly fault tolerant and easy to scale.