Digital library
Textbooks, references and open learning resources.

External
Music Appreciation
Elliot Jones · Santa Ana College
In the contents: 1.30: Renaissance Dances

External
Microwave and RF Design III - Networks
Michael Steer · North Carolina State University
In the contents: 6.3: Impedance Transforming Networks · 6.7: Impedance Matching Using Smith Charts · 7.4: Stepped-Impedance Transmission Line Transformer

External
Microwave and RF Design II - Transmission Lines
Michael Steer · North Carolina State University
In the contents: 5.06: Formulas for Impedance of Coupled Microstrip Lines · 5.11: Common Impedance Coupling

External
Mind, Body, World - Foundations of Cognitive Science
Michael R. W. Dawson · University of Alberta
In the contents: 5.06: Umwelten, Affordances, and Enactive Perception

External
Electricity and Magnetism
Jeremy Tatum · University of Victoria
In the contents: 13.11: Root-mean-square values, power and impedance matching · 14.10: Generalized Impedance

External
TED 2000 Foundations of Education
Dr. Ashanti M. Bryant-Foster · Prince George's Community College
In the contents: 7.09: Instructional Strategies- An Abundance of Choices

External
SmartHistory of Art IXa- Modernisms 1900 to ~1945
Smarthistory · Smarthistory
In the contents: 3.1.04: Andre Derain The Dance · 3.1.5.04: Dance I · 3.1.5.10: The Dance at the Barnes Foundation

External
Electric Circuits II Alternating Current
Tony R. Kuphaldt · Bellingham Technical College
In the contents: 03: Reactance and Impedance - Inductive · 04: Reactance And Impedance - Capacitive · 05: Reactance And Impedance - R L and C

External
Music Appreciation Remix
Christine Gengaro · Los Angeles City College
In the contents: 6.01: Dance Music in the United States · 6.02: Dance Music in Concert Settings · 10: Danced Drama

External
Writing the Literature Review
Robert Lloyd, Daniel Mertens, and Matthew Vollrath · Fort Hays State University
In the contents: 6: Practical Guidance

External
Electromagnetics II
Steven W. Ellingson · Virginia Tech
In the contents: 4.02: Impedance of a Wire · 4.03: Surface Impedance · 10.06: Impedance of the Electrically-Short Dipole

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PH S 1150: Basic Astronomy
Alex Koshy · Chicago State University
In the contents: 17.04: Cosmic Concordance and Cosmological Parameters

External
Electricity and Magnetism with Applications to Amateur Radio and Wireless Technology
Ronald Kumon · Kettering University
In the contents: 12.03: Transmission Lines and Characteristic Impedance · 21.09: Characteristic Impedance of a Transmission Line

External
Introduction to Marketing
Milledge Mosby Jr. · Prince George's Community College
This textbook introduces marketing as a strategic, customer-centered process for creating and delivering value. It covers consumer and business buying behavior, segmentation and positioning, product development, channels and supply chains, marketing research, integrated communications, selling, pricing, and customer loyalty, concluding with practical guidance on building and evaluating an effective marketing plan.

External
Chem 12A: Organic Chemistry
Andy Wells · Chabot College
In the contents: 7.04: Polar Reactions- the Dance of the Nucleophile and Electrophile

External
Electric Circuits III - Semiconductors
Tony R. Kuphaldt · Bellingham Technical College
In the contents: 4.13: Amplifier Impedances

External
¡Chévere! Introductory Spanish I
Erica Brown, Alejandra Escudero, María Cristina Montoya, & Elizabeth Small · SUNY Oneonta
Introductory Spanish I is the first half of a comprehensive introductory 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 and culture in the Spanish-speaking world.

External
PLS 002: Botany and physiology of cultivated plants
Tom Buckley · University of California Davis
In the contents: 16.1.04: Etiolation and Shade Avoidance

External
SPAN 120: Advanced Elementary Spanish
Luciana Castro · Skyline Collage
This remix by Professor Luciana Castro for Skyline College is derivative of Introductory Spanish II, the second half of a comprehensive introductory Spanish sequence, providing guidance and practice in reading, writing, listening to, and speaking Spanish.

External
Statistical Mechanics
Daniel F. Styer · Oberlin College
In the contents: 3.06: The Thermodynamic Dance