Welcome to Gap Books
We are an independent directory publishing company run by Alan Philipp who has been publishing award-winning directories for more than 30 years.
Our directories are essential sources of company information for businesses large and small.
D&B Business Directories
GAP Books in partnership with Dun & Bradstreet publish the D&B Business Directories. The directories provide comprehensive and accurate information on millions of businesses worldwide. Click on the links above for more information on each of our products.