This guide is designed to assist early childhood services in New Zealand to develop quality improvement systems and undertake quality reviews. The guide extends concepts and ideas from the government's Revised Statement of Desirable Objectives and Practices (DOPs), Quality in Action, and Te Whariki. Section 1 of the guide explains what a quality improvement system involves and how to start development of such a system. This section details each step that an early childhood service needs to complete before carrying out quality reviews. Section 2 focuses on the quality review itself, describing a cycle that services can follow to undertake such a review. Section 3 introduces and describes an approach using quality indicators as a measurement tool to evaluate practice in a review. Section 4 presents examples of quality reviews, each representing a different approach and illustrating many of the concepts. Section 5 presents an extensive case study, showing how one early childhood service undertook its first quality review. A glossary and recommended reading list follow. The Revised Statement of Desirable Objectives and Practices and a measuring tool that services can use in their reviews completes the report. (Contains 86 references.) (KB)