1 Includes all ACS Symposium Series, Advances in Chemistry, and Medicinal Chemistry Reviews series titles that are included in ACS eBooks packages. To retrieve all ACS eBooks MARC records, download both the 1974–2024 and the 2025–present files. ACS In Focus books and standalone reference works like the ACS Guide to Scholarly Communication and ACS Reagent Chemicals are not included.
2 New MARC records are typically available 2–4 weeks after a book is published online. This file is updated when new records are added.
3 The ACS Guide to Scholarly Communication is a reference work that is regularly maintained and updated. MARC record updates are anticipated 1–2 times per year.
4 ACS In Focus is not a part of ACS eBook collections.