The document discusses the 6th edition of the APM Body of Knowledge (BoK). It introduces the BoK as providing a framework for integrated change delivery. It notes that the 6th edition aims to address the problem of how to implement change initiatives across an organization in a repeatable way. The document outlines the structure of the 6th edition, including its focus on primary practices, domains, and topics related to change delivery. It argues that the BoK can provide a viable framework for integrated change delivery through selecting relevant practices, assessing maturity levels, designing practice sets, embedding practices in an organization, and tailoring practices to specific initiatives.