Digital library
Textbooks, references and open learning resources.

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MAT 2410: Calculus (Open Stax)
Jaison Novick · Prince George's Community College
This texts address a three-semester sequence of university-level calculus for a variety of majors including, but not exclusive to, science, engineering, and mathematics. It provides an introduction to single variable calculus; study of limits, continuity, differentiation and its applications, definite and indefinite integrals and the Fundamental Theorem of Calculus.

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World History II: From 1400 (OpenStax)
OpenStax · LibreTexts
In the contents: 15.04: Science and Technology for Todays World

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Chemistry 2e (OpenStax)
Flowers, Theopold, and Langley · OpenStax
This Textmap is designed for the two-semester general chemistry course. For many students, this course provides the foundation to a career in chemistry, while for others, this may be their only college-level science course. As such, this textbook provides an important opportunity for students to learn the core concepts of chemistry and understand how those concepts apply to their lives and the world around them.

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Chemistry (OpenStax)
Flowers, Theopold and Langley · LibreTexts
This Textmap is designed for the two-semester general chemistry course. For many students, this course provides the foundation to a career in chemistry, while for others, this may be their only college-level science course. As such, this textbook provides an important opportunity for students to learn the core concepts of chemistry and understand how those concepts apply to their lives and the world around them.

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Astronomy 2e Openstax
Rachel Mastrapa · De Anza College
In the contents: 1.03: The Nature of Science

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OpenStax Biology 2e for Norco College
teresa friedrich finnern · Norco College
In the contents: 1.02: The Science of Biology

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Clackamas Biology 112 OER Textbook (OpenStax)
Jennifer Bown · Clackamas Community College
In the contents: 1.01: The Science of Biology · 1.03: The Process of Science