This is the job:
I give you a website to a book in the sex niche. You find a video sales letter and a long form sales letter in there (very good, if not the only source of information for this book).
You write a professional Wikipedia article about it for me, and publish it. People on this page should feel like they are getting objective information, and feel compelled to buy that book.
To verify you've read the job description, please start your cover letter with the word "wikibook".
Please propose with your own budget, the $20 are just an example.
The length of the article depends on you, but should be no less than 750 words.