28  Further Reading

The References chapter carries the book’s formal citations with verification status. This page points elsewhere — to where each theme lives on, in public:

• The guidance corpus. The R Validation Hub’s white paper and site (pharmar.org) remain the best single entry point to risk-based package validation; the PHUSE open-source guidance (OSTCDA) is the industry’s collective answer, including the chapters it honestly leaves open.
• The ecosystems. pharmaverse.org and the Insights Engineering NEST family are the two trees to climb — package catalogs first, then their catalogs of standard outputs, which teach the domain faster than any specification.
• The pipeline craft. Will Landau’s {targets} manual (books.ropensci.org/targets) is the clearest statement anywhere of dependency-graph thinking for analysis; {renv}, {logrx}, and {whirl} extend it into regulated territory.
• The companion research. The preprint Human-Governed Validation of R Packages for Regulated Statistical Computing (jaimeyan.com/papers) carries the full technical detail behind Chapter 20; the platform and strategy papers behind Chapter 19 and the two-tier strategy are in PHUSE submission channels.
• The sibling volumes. Modern R in Practice for the engineering craft; Clinical R in Practice for the ecosystem map in regulated production. This book assumes neither and borrows from both.

The chapter tests need no references. Run them on your own systems; the results will cite themselves.