As part of your launch I would
There is very little provided information here to build on. The following variables would be extraordinarily relevant:
Regardless, here are some ideas to get you started:
That is all without additional information. . . .
(If your subject matter is politics and you are trying to promote book sales you could run for president. It seems to be working for Cain.)
I would suggest crowd sourcing your book unpublished book.
I think this web site http://bookhunch.com/ will help with that.
If not satisfied with this you could always send your unpublished mock ups to limited/privileged/signed up readers. (like in software industry we conduct a limited beta to get reviews before lunching the whole product commercially.)
Share your content with everyone. Make sure you're the first source for the topic. Don't sell, just engage. If they find you interesting and trust your insight then they'll come asking you for more. Participate in related forums, answer sites, comment on blogs, write guess posts, reply to tweets. Be the best source for the knowledge.