Digital library
Textbooks, references and open learning resources.

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Introduction to Drafting and AutoCAD 3D (Baumback)
Wally Baumback · Vancouver Community College
This book is a tool to guide and teach you to master AutoCAD 3D. No two students learn at the same pace, therefore the book was written with competency-based modules. The competency-based modules are bite-size pieces that allows you to work at your own pace. They can be used to learn by distance education, correspondence, online, instructor-lead classes, or by individuals teaching themselves to use AutoCAD in their own home or office.

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Analysis
CK-Foundation · LibreTexts
In the contents: 5.3.01: Distance Between a Point and a Plane · 6.2.02: Parabolas and the Distance Formula

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Geometry
CK-12 Foundation · LibreTexts
In the contents: 4.36: Distance and Triangle Classification Using the Pythagorean Theorem · 4.37: Distance Formula and the Pythagorean Theorem · 4.38: Distance Between Parallel Lines

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Measurement
CK-12 Foundation · LibreTexts
In the contents: 4.1.07: Distances Greater Than or Less Than a Foot or a Yard · 4.3.01: Determine Distance Using Addition · 4.7.02: Add Metric Lengths and Distances

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Matrix Algebra with Computational Applications
Dirk Colbry · Michigan State University
In the contents: 9.2: Calculating Vector Length, Normalization, Distance and Dot

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Writing and Critical Thinking Through Literature
Heather Ringo & Athena Kashyap · Open Educational Resources Initiative
In the contents: 7.14: Hill Sean Distance Between Desires from Dangerous Goods (2013)

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Trigonometry
CK-12 Foundation · LibreTexts
In the contents: 1.06: Distance Formula and the Pythagorean Theorem · 5.1.02: Distance Between Two Polar Coordinates

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Teaching in a Digital Age
A.W. (Tony) Bates · Contact North
In the contents: 01: Fundamental Change in Education · 01.3: Should education be tied directly to the labour market · 01.6: Changing students changing markets for higher education

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Digital Photography Basics
Politzer · CK12
In the contents: 6.02: Flash and Distance

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Physics - From Stargazers to Starships
CK-12 Foundation · LibreTexts
In the contents: 17: Distance to the Horizon · 17.01: Distance to the Horizon · 18.02: Estimating Distance Outdoors

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English 002: Supplemental Reader
Jill Bonds · Coalinga College
In the contents: 5.13: Hill Sean. Distance Between Desires from Dangerous Goods (2013) · 10.66: Education in the (Dis)Information Age (Shaffer) · 10.70: Visiting First Place School- Reflections on Other-Centric Education Private Education and Identity (Shepard)

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Physics 110
Andrew Morrison · Joliet Junior College
In the contents: 12.5.06: Intensity and Distance