Core Protocol Buffers library. Protocol Buffers are a way of encoding structured data in an efficient yet extensible format.
 | Protocol Buffers Handbook: Getting deeper into Protobuf internals and its usage (2024) by Clément Jean |
 | Protocol Buffers A Complete Guide (2022) by Gerardus Blokdyk |
 | Getting Started with Google Guava (2013) by Bejeck, Bill |