Copy write a mail order ad for a book

I have written a book 'Computers For Seniors'.? I need some help with copywriting printed adverts in magazines and newspapers plus a sales letter for a web page.? This should be a fairly easy and quick job for an experienced copywriter. REQUIREMENT: My vision is to create 3 adverts.? The first is a very small display ad with a few words that compels readers to go to a web page and read the sales letter. The second is larger and sells off the page. Estimate 200 words plus endorsements and order tear off slip The third version is much larger at about 400 words plus endorsements and tear off slip. I imaging the larger ad simply becomes the content for the sales letter on the web site. The market is for Seniors learning about computers and the Internet and even making money online. It has to be very relaxed and not formal. I just need the copy at the moment and will then have it set into artwork for the ads and for a sales web page. I need to see examples of creative copywriting to assess the best person to do this.? I will supply a copy of the book, plus a competitors ad, for information only, to the successful bidder to help them get going.