Keep these under your pillow.

### Package Documentation

The built-in documentation for the Go standard library.

### Command Documentation

The built-in documentation for the Go tools.

### Language Specification

The official Go Language specification.

### App Engine Go Runtime Documentation

The documentation for Google App Engine's Go runtime.

### Release History

A summary of the changes between Go releases.

### The Go Memory Model

A document that specifies the conditions under which reads of a variable in one goroutine can be guaranteed to observe values produced by writes to the same variable in a different goroutine.

### Debugging Go Code with GDB

Using GDB to debug Go programs.