Crafting Interpreters
Robert Nystrom
Java Performance: The Definitive Guide
Scott Oaks
Google BigQuery: The Definitive Guide
Valliappa Lakshmanan & Jordan Tigani
xkcd: volume 0
Randall Munroe
Build Your API with Spring
Baeldung
Move on to JUnit 5
Get the Most out of HTTP Client
Persistence with Spring
Do JSON with Jackson
A Microservice Architecture with Spring Boot and Spring Cloud