To get your How-to on writing up an ad and selling your book on Craig's List, you need to email me at sjeditor@yahoo.com. I have a PDF I can send you but I can't send it unless you give me your email address. Thanks for all the responses; it's been amazing to hear from so many!
>they don't want you putting up the same ad on a lot of cities at once.
If you use a registered account to sell items on Craig's List, you are limited to the market in which you signed up. To post to more than one city, post the ad without registering. Also, change the ad so that it isn't identical, which will comply with the concern that you are posting the same ad to multiple cities.