Los Angeles, CA -
Borders has unfortunately gone out of business, leaving Barnes and Noble as the last 'big' chain here that does substantial sales.  Barnes and Noble also have their own proprietary Nook tablet.  You can get my book either in the store or online, hard copy or nook version if you opt for the latter.

There are plenty of independent stores out there though - so just search for the one closest to you and you will be able to also order the book from them, though it may have to be a special order.

Layne Thrasher, Los Angeles