Boundless Writing Open Textbook

Boundless, an organization that creates affordable and effective online textbooks and learning tools, offers a freely available Writing textbook based off of openly available educational resources. 

The Boundless Writing Textbook is published under the Creative Commons Attribution-ShareAlike (CC BY-SA)license, which means anyone is welcome to quote, mashup, reuse, and republish any portion of this book, anywhere, so long as proper citation is given.

Writing Open Textbook online:

https://www.boundless.com/writing/

Download:

https://www.boundless.com/writing/Writing-free-textbook-pdf-download/