CTPED and Traditional Security Countermeasures: 150 Things You Should Know is a handy reference for both seasoned professionals and those just starting out in security and law enforcement. Crime Prevention Through Environmental Design (CPTED) is a foundational concept to physical security and can be incorporated widely in security policies, plans, and procedures. It has proven effective over the many years insofar as building and campus design, security architecture, and creating an overall security culture in any workplace.