Title: A Review of Open Educational Resources in the Geosciences: Guidelines and Criteria Authors: Samantha Teplitzky*, Open Science Librarian, Earth Sciences & Map Library, University of California, Berkeley, 50 McCone Hall, Berkeley, CA 94720, steplitz@berkeley.edu, ORCID: 0000-0001-7071-332X Shaun Hardy, Librarian, Earth & Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, shardy@carnegiescience.edu, ORCID: 0000-0002-7259-3330 Kay Johnson, Head of Collection and Technical Services, Radford University, 801 E. Main St., Radford, VA 24142-6881, kjohnson497@radford.edu, ORCID: 0000-0001-6472-345X Robert Tolliver, Sciences Librarian, North Dakota State University, Fargo, ND 58108-6050, robert.tolliver@ndsu.edu, ORCID: 0000-0003-1584-433X Lori Tschirhart, Assistant Director, STEM, University of Michigan Library, Ann Arbor, MI 48109-1190, ltz@umich.edu, ORCID: 0000-0001-9322-3171 Ifigenia Vardakosta, Phd. Head Librarian, Harokopio University, Library & Information Centre, Athens, Greece, ifigenia@hua.gr, ORCID: 0000-0001-9465-8476 Keywords: Open Educational Resources, OER, Geoscience Education This repository documents the background information to the following report: Teplitzky, S., Hardy, S., Johnson, K., Tolliver, R., Tschirhart, L., & Vardakosta, I. (2021). A Review of Open Educational Resources in the Geosciences: Guidelines and Criteria. https://doi.org/10.31223/X5J90G Report This study examines the creation and adoption of OER in the Geosciences with a goal of providing guidance for institutions, libraries and librarians who support and fund OER initiatives. An environmental scan, employed to identify and characterize available college-level OER in this discipline, provided a baseline for the study. Analysis of the scan along with a review of OER, textbook and field guide standards informs a new set of proposed guidelines for Geoscience OER. This work will describe these guidelines and offer a call for community feedback. Data Appendix 1: Geoscience OER Environmental Scan and Data, 10.5281/zenodo.5542323 Research Products Guidelines Table, 10.5281/zenodo.5542306 This work is a collaboration of members of the GeoScience Information Society (GSIS) which emerged from the Professional Issues Roundtable at the 2020 Annual Meeting (held virtually on October 30, 2020).