MENTOR's cornerstone publication, the "Elements of Effective Practice for Mentoring[TM]", details research-informed and practitioner-approved Standards for creating and sustaining quality youth mentoring programs and consequently, impactful mentoring relationships. This Fourth Edition, released in 2015, reflects the most up-to-date research, practice, and thinking in the mentoring field. The six evidence-based Standards are intended to be applicable across almost every type of youth mentoring program. Each Standard includes Benchmarks to ensure the safety and effectiveness of mentoring relationships, as well as Enhancements that may be promising, innovative and useful for programs. Additionally, a Program Planning and Management section offers recommendations for designing, building, and strengthening mentoring programs and services. [For the 3rd edition of "Elements of Effective Practice for Mentoring[TM]", see ED512172.]