30 Association of Research Libraries Research Library Issues 295 — 2018 spectrum of credentialing, and enjoy better compensation, a reflection of the broader market for the skills they bring. The period of 2015– 2020 will prove a watershed moment for research library staffing, and will herald the start of the next generation of library professionals. Endnotes 1 The primary data source for this study is the demographic portion of the 2015 ARL Salary Survey, an unpublished data series collected by ARL. The Salary Survey includes data for all professionals working in university ARL member libraries in the US and Canada. The data tables used for the analysis presented in this article are available for download at http://www.arl.org/storage/2017-10-03-rli-wilder-data. xls. 2 Stanley Wilder, “Delayed Retirements and the Youth Movement among ARL Library Professionals,” Workforce Trends in Research Libraries series, March 2017, http://www.arl.org/workforce-trends. 3 Association of Research Libraries, ARL Statistics Analytics, accessed September 29, 2017, https://www.arlstatistics.org/analytics. 4 Roger C. Schonfeld and Liam Sweeney, Inclusion, Diversity, and Equity: Members of the Association of Research Libraries: Employee Demographics and Director Perspectives, August 30, 2017, https://doi. org/10.18665/sr.304524. 5 Stanley Wilder, “The End of Lower Skill Employment in Research Libraries,” BackTalk, Library Journal, June 24, 2013, http://lj.libraryjournal.com/2013/06/opinion/backtalk/ the-end-of-lower-skill-employment-in-research-libraries-backtalk/ © 2017 Stanley Wilder This article is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://