Digital library
Textbooks, references and open learning resources.

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Geological Structures - A Practical Introduction
John Waldron & Morgan Snyder · University of Alberta
This manual is about structures that occur within the Earth’s crust. Structures are the features that allow geologists to figure out how parts of the Earth have changed position, orientation, size and shape over time. This work requires careful observation and measurements of features at the surface of the Earth, and deductions about what’s below the surface.

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MC : Physics 213 - Modern Physics
Charles Collett · Muhlenberg College
LibreTexts

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First-Semester Abstract Algebra: A Structural Approach
Jessica K. Sklar · Pacific Lutheran University
This text is specifically designed to suit a single-semester introductory abstract course, rather than to be a comprehensive reference source.

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Microbiology Laboratory Student Manual
Angelo Kolokithas · Northeast Wisconsin Technical College
This Microbiology lab manual provides instructions for conducting the following labs: Safety, Culture Handling, Microscopes, and Streak Technique; Examining Throat Cultures and Gram Staining; Tiny Earth Introduction and Planning; Soil Collection Field Work; Plating Soil Samples; Bacterial Culture Conditions; The Master Plate & Antibiotic Screening; Broad-Spectrum Screening; Colony PCR; Gel Electrophoresis and Sequencing Prep; Glycerol Stocks; Classic vs Modern Biochemical Tests; and Kirby-Bauer

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Child Growth and Development
Paris, Ricardo, Rymond and Johnson · College of the Canyons
This text is a presentation of how and why children grow, develop, and learn. We will look at how we change physically over time from conception through adolescence. We examine cognitive change, or how our ability to think and remember changes over the first 20 years or so of life. And we will look at how our emotions, psychological state, and social relationships change throughout childhood and adolescence.

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Open Neuroscience Initiative
Austin Lim · DePaul University
This project began as a means to overcoming the financial burden that face undergraduate neuroscience students when buying textbooks. By compiling and writing a completely free-to-access textbook that covers the foundations of a typical college introduction to neuroscience course, students would have one less obstacle to overcome in their educational career, allowing them to focus their valuable time and attention on learning rather than finances.

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Physical Science for Educators (CID: PHYS 14)
Evans, Ford, Henry, Kumari, Mona, Wakim · Coalinga College
Physical Science for Educators is designed to prepare students to teach chemistry and physics at the K – 12 grade levels with emphasis on meeting CA Public School Standards. This course is part of the natural science series for students planning to transfer to a four-year liberal studies program. Topics include physical and chemical properties of matter, motion, energy, electricity, light, atomic structure and bonding, and chemical reactions.

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GEOG 11003 Introduction to Geography
Chester Cornell · Arkansas State University-Beebe
This introductory geography text provides a foundation for exploring population, culture, migration, religion, regional geography, political systems, economic activities, and environmental issues that shape our world.

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Lecture Textbook
LibreTexts
LibreTexts

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Environmental Toxicology
Sylvia Moes, Kees van Gestel, & Gerco van Beek · LibreTexts
This textbook on Environmental Toxicology aims at covering the field in its full width, including aspects of environmental chemistry, ecotoxicology, toxicology and risk assessment. This contributes to improving the quality, continuity and transparency of the education in environmental toxicology. We make sure that fundamental insights on fate and effects of chemicals gained in the past are combined with recent approaches of effect assessment and molecular analysis of mechanisms causing toxicity.

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Map: General Chemistry: Principles, Patterns, and Applications (Averill)
Anonymous · LibreTexts
LibreTexts

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Statistics Done Wrong
Alex Reinhart · Carnegie Mellon University
Statistics Done Wrong is a guide to the most popular statistical errors and slip-ups committed by scientists every day, in the lab and in peer-reviewed journals. Many of the errors are prevalent in vast swaths of the published literature, casting doubt on the findings of thousands of papers. Statistics Done Wrong assumes no prior knowledge of statistics, so you can read it before your first statistics course or after thirty years of scientific practice.

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Physical Chemistry for Biological Sciences
Carey Southern · DePaul University
LibreTexts

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Physical Anthropology
Arnie Daniel Schoenberg · San Diego City College
This class is an introduction to physical anthropology, but for many it will be your first anthropology class, or perhaps your first science class in college, so it is worthwhile to back up and introduce both science and anthropology. And before talking about science, we should back up even farther, and talk about epistemology, the study of how we know things.

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An Introduction to Number Theory
J. J. P. Veerman · Portland State University
These notes are intended for a graduate course in Number Theory. No prior familiarity with number theory is assumed. Chapters 1-6 represent approximately 1 trimester of the course. Eventually we intend to publish a full year (3 trimesters) course on number theory.

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The Introduction to Mass Communication Book
Ben Lohman · Orange Coast College
LibreTexts

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Chem 201: General Chemistry I OER
Rana Akiel · College of the Canyons
LibreTexts

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College Algebra
Jay Abramson · Arizona State University
College Algebra provides a comprehensive exploration of algebraic principles and meets scope and sequence requirements for a typical introductory algebra course. The modular approach and richness of content ensure that the book meets the needs of a variety of courses. College Algebraoffers a wealth of examples with detailed, conceptual explanations, building a strong foundation in the material before asking students to apply what they’ve learned.

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Math 384: Foundations for Calculus
Roy Simpson · Cosumnes River College
LibreTexts

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Introduction to Statistics (RRCC)
Mathematics Department · Red Rocks Community College
This student-centered, open-source stats textbook builds conceptual understanding through real data, visuals, and interactive tools. Covering core topics like sampling, inference, and regression, it features step-by-step explanations, a semester-long housing project, and digital-friendly delivery. Designed for clarity, engagement, and flexibility, it's ideal for both students and instructors seeking practical, adaptable statistics resources.