I suggest first creating a media kit to include all of your book covers with a small 100-150 blurb.
Next, identify companies, organizations and/or coaches/consultants who you can pitch your to for bulk sales. It would be to create a database to collect all of the contact information. A great place to find these prospects is on LinkedIn and Twitter.
Lastly, once you have your database, send them a intro letter to include how your book would be a great marketing tool for their audience, and include a discount scale to show how much your willing to offer off for bulk purchases.
