All the resources in the Guide, starting with most recent.
Part of tutorial
Creating your Spring ControllerPart of tutorial
Creating your Spring Boot ProjectPart of tutorial
WithPart of tutorial
Verify AllPart of tutorial
StubsPart of tutorial
Spock IntelliJ IDEA PluginPart of tutorial
Specifications as DocumentationPart of tutorial
Shortcuts usedPart of tutorial
Setup and TeardownPart of tutorial
MocksPart of tutorial
Label Flexibility