Digital library
Textbooks, references and open learning resources.

External
Introduction to Residential HVAC Level 1
Richard Valenzuela · Coalinga College
LibreTexts

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SPAN 202
roberto hurtado · Montgomery College
LibreTexts

External
Critical Thinking and Information Literacy
Andi Pogue · Consumes River College
LibreTexts

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Spanish 2B: Advanced Spanish (2026)
Cristina Moon · Chabot College
Spanish 2B is the second half of a comprehensive advanced Spanish sequence, providing guidance and practice in reading, writing, listening to, and speaking Spanish. Each module includes thematic vocabulary, sequenced grammar instruction, numerous self-check drills and exercises, open-form communicative activities, scaffolded writing assignments, and reading passages exploring various aspects of life, culture, literature, and film in the Spanish-speaking world.

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Astronomy
OpenStax · LibreTexts
This astronomy text is designed to meet the scope and sequence requirements of one- or two-semester introductory astronomy courses. The book begins with relevant scientific fundamentals and progresses through an exploration of the solar system, stars, galaxies, and cosmology. The Astronomy textbook builds student understanding through the use of relevant analogies, clear and non-technical explanations, and rich illustrations.

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Open Music Theory 2e
Mark Gotham et al. · VIVA - Virtual Library of Virginia
Open Music Theory is a natively-online open educational resource intended to serve as the primary text and workbook for undergraduate music theory curricula. OMT2 provides not only the material for a complete traditional core undergraduate music theory sequence (fundamentals, diatonic harmony, chromatic harmony, form, 20th-century techniques), but also several other units for instructors who have diversified their curriculum, such as jazz, popular music, rhythm, counterpoint, and orchestration.

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Trigonometry
Kelsey Casteel · Reedley College
LibreTexts

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MTH 098 Elementary Algebra
LibreTexts
LibreTexts

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Contemporary Sociology of Marriage and Family
Sarah Earl-Novell · Chabot College
"Contemporary Sociology of Marriage and Family" introduces family life through a sociological lens. The book examines theoretical perspectives and diverse family forms, using an intersectional framework to explore how gender, race, social class, and sexuality shape family experiences and inequalities. Later chapters examine attraction, love, relationship formation, marriage, childfree lives, pathways to parenthood, and parenting, as well as family violence, divorce, and remarriage.

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Foundations for Assisting in Home Care
Kimberly B. McLain, Erin O'Hara-Leslie, and Andrea C. Wade · SUNY Broome
This text provides the background necessary to begin working toward a career in the home care field as either a Home Health Aide or Personal Care Aide, which are two of the fastest growing occupations. This text is also suitable for those who are providing care to loved ones and who would like additional information to best provide that care, or for use within Home Health Aide and Personal Care Aide programs.

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Introduction to Linear Time-Invariant Dynamic Systems for Students of Engineering
William L. Hallauer Jr. · Virginia Tech
This text addresses a combination of system dynamics and responses, mechanical vibrations, mechanical and electrical systems, rigid body dynamics, and feedback control. Covered are free and forced, undamped and damped responses, in both the frequency and time domain with an emphasis on linear time-invariant (LTI) systems, including time- and Laplace-solutions of the governing ordinary differential equations. First-, second-, and fourth-order systems are addressed.

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General Biology
OpenStax · LibreTexts
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, and taxonomy. Modern biology is a vast and eclectic field, composed of many branches and subdisciplines. However, despite the broad scope of biology, there are certain general and unifying concepts within it that govern all study and research.

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Corpus Linguistics: A Guide to the Methodology
Anatol Stefanowitsch · Freie Universität Berlin
This book attempts to frame corpus linguistics systematically as a variant of the observational method. The first part introduces the reader to the general methodological discussions surrounding corpus data and the second part consists of a number of case studies from the main areas of corpus linguistics (lexical associations, morphology, grammar, text and metaphor).

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French OER 3 (Carrasco and Zahedi)
William J. Carrasco and Shahrzad Zahedi · Palomar College
This course is the third semester of French. This intermediate level course is a study of the French language and French-speaking cultures, with continued emphasis on the development of communicative skills and basic structures. The course combines in-class instruction with self-paced study in the Foreign Language Laboratory.

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Legal Basics for Entrepreneurs
LibreTexts · LibreTexts
This text covers the broad spectrum of legal issues that entrepreneurs must understand when starting and running a business. The text is organized to permit instructors to tailor the materials to their particular approach. The authors take special care to engage students by relating law to everyday events with their clear, concise and readable style.

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Introduction to Kinesiology
Weston Titus · Palomar College
This textbook acts as an introduction to kinesiology exploring the wide variety of subdisciplines of the field. Special emphis is placed on continuing education and experience in each field leading to a career.

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ECON 201: Principles of Macroeconomics
Mihajlo Balic · Harrisburg Area Community College
LibreTexts

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Introduction to Cultural Anthropology
Debbie Klein · Gavilan College
Today’s 21st century world is changing at a breathtaking pace! We are connecting with people, ideas, and systems at intensifying speeds. Communication technologies and economic activities are linking people instantaneously across the globe. In this course, we explore how anthropology helps us understand and engage today’s diverse and complex world as we move through it. We also explore how each of us is empowered to create positive change in and beyond our communities.

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BMT1570: Small Business Management
Thomisha M Duru-Nnebue · Prince George's Community College
This text offers a unique perspective and set of capabilities for instructors. The authors designed this book with a “less can be more” approach, and by treating small business management as a practical human activity rather than as an abstract theoretical concept.

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Business Law I
Timothy Durfield · Citrus College
LibreTexts