We stress in our Ultimate Book Marketing Kit that a news release must be brief and very strong, using bulletted points to clearly state the benefits of the author's book.
I don't know how to say it more clearly than in already states in the Kit: keep it simple.
Make a list of the three most critical points in your book and let the media know how those points are important information for their audience. Show the media how you have a relevant story that will inform or solve a problem for the audience.
Our clients can send us their news releases for a critique - free.
Denise
www.inktreemarketing.com
www.publishacookbook.com