Jay Shafer's DIY Book of Backyard Sheds & Tiny Houses: Build Your Own Guest Cottage, Writing Studio, Home Office, Craft Workshop, or Personal Retreat
ISBN: 1565238168
Buy on Amazon
Found in 1 comment on Hacker News
patrickg_zill · 2016-04-08 · Original thread
You can go even tinier:

http://www.amazon.com/Shafers-Book-Backyard-Sheds-Houses/dp/...

100 to 120 square feet. And they are (or can be made) transportable.

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