Intro
We have no English version right now. However, we do have a plan. Please be patient. :)
If you can read Chinese, please click the "简体中文" tab on the top of this page.
Update
The latest version of this book is writeos-1.0-2-weekly.pdf, released on Nov. 29th, 2008.Note
Write Your Own OS with Free and Open Source Software Revision 2 Released. Free download.