You want to remain faraway from a highly specialized
Book, which pulls limited audience. you would like your book to be among the books that appeal to a general audience or a minimum of to an outsized segment of the overall population. you want to demonstrate to your prospective publishing agent that your large audience - of many thousands of individuals , if not millions - exists. One excellent source of market data is Standard Rate and Data Service (SRDS), a book listing US magazines that accept advertising and their circulations. SRDS is out there at your local library or from the publisher (tel. 847/375-5000). search for the combined circulation of the most important publications in your
Christianity Book area.