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The best program to use is Adobe Illustrator for editing the LibCal maps and the assumption of this guide is that you are using it.
Understanding Fundamentals/Helpful Links
https://helpx.adobe.com/illustrator/how-to/ai-basics-fundamentals.html
Look it Up!
If you are having trouble with anything, best way to progress is looking it up.
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Understanding How Layering Works and Why It is Important
https://helpx.adobe.com/illustrator/using/layers.html
Adding/Editing Spaces
How to add or edit a space
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Saving as AI
Saving as AI for further work
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