Appendix D — Further reading

• The Go specification — https://go.dev/ref/spec (short enough to read end to end once)
• Effective Go — https://go.dev/doc/effective_go
• The Go Memory Model — https://go.dev/ref/mem
• Standard library docs — https://pkg.go.dev/std (searchable, always the primary source over any blog post)
• golang.org/x/time/rate, golang.org/x/sync/errgroup, golang.org/x/sys/unix — the "extended standard library" used throughout Parts III–VI
• This Wiki: golang-90-day-plan.md (day-by-day exercises), detailed-90-day-plan/ (expanded daily lessons), projects/lru_cache.md (the design spec Chapter 26 implements)