Compile a list of publications that publish reviews of books similar to yours. Note the name, title, postal and email addresses and telephone numbers of the reviewer. Contact each company to ensure you have the correct information, include the spelling of the reviewer’s name.
Start each letter with the contact information listed. Open each letter with "Dear Mr. (or Ms.) (last name)". While using the first name may be acceptable, it is usually best to err on the side of formality.
Begin the body of the letter with, “I have written a _____-word book about (subject), “(Title)”.
Continue with, “This book, published by (publisher) would be of interest to your readers because (insert reasons here).” Reasons could include the author is a local resident or former resident, the magazine covers similar topics, the subject is of local or current interest, etc.
Describe the book. If it is fiction, discuss the plot, the location and the characters. If it nonfiction, explain what makes your book different from others of the same subject. For example, if it is a weight-loss book, what new diet or exercise tips does it offer?
List your credentials, including current and past positions and previously published works. Show that you are uniquely qualified to write this book. “As a single mother of two, including an autistic toddler, I was able to include our family’s experiences in writing, 'My Autistic Sister.'”
Politely ask for a review. “I have included a sample chapter of 'My Autistic Sister' and would be honored if you would review it for your publication because you and your publication have such a good reputation in the field of autism and parenting.”
Thank the reviewer for his time and consideration. Close by saying you will contact him in a week to ensure he received the book. Sign the cover letter with your name and contact information.
Follow up as you stated you would. Call or email the reviewer, introduce yourself and say, "I sent you a review copy (or sample chapter) of my book, '(Title),' and I wanted to be sure you received it."
Depending on the response, offer to send another copy (if he didn't get it) or ask if he plans to review it (if he had received it). If he does plan to review it, ask when he expects it to be published and if he has any questions about the book. If he doesn't plan to, you may politely ask the reason but don't argue about it. In any case, thank him for his time and consideration.