> Starting today, you could be collecting BOWKER BONUS 1 CREDIT CERTIFICATES worth $5.00 each, and applying them to up to 50 percent of the cost of your next first-time purchase of an R.R. Bowker title! It's all part of Bowker's exciting BONUS 1 PROGRAM -- our way of helping you make the most of your acquisition dollars.

> Why are we doing it?

> To thank our customers for more than 100 years of continued support. And they love it! Launched July 1, 1989, Bowker's BONUS 1 PROGRAM already has more than 5,600 institutions as members to date and counting. Moreover, because of the response and increasing redemption of BONUS 1 CERTIFICATES, we've decided to extend the program through June 30, 1991 and open registration to include new members like yourself.

> Becoming a BONUS 1 member is easy. Simply complete and mail the attached reply card and we'll send you your FREE BONUS 1 STARTER KIT. It includes your personal BOWKER BONUS 1 Identification Number and all the information you need to begin saving money on Bowker purchases immediately, plus a handy BONUS 1 File Folder to neatly store your certificates and BONUS 1 Bulletins. From time to time, you'll also receive special DOUBLE BONUS and EXTRA CREDIT Offers, available only to BONUS 1 PROGRAM members.

> Save your CREDIT CERTIFICATES and use them to pay for up to 50 percent of the cost of any new Bowker product or any Bowker product you have not purchased since January 1, 1987.

> That's all there is to it. There's no minimum order, no limited eligibility and no baffling forms to decipher.

> Enrollment in the BONUS 1 PROGRAM is FREE, but you must register to be able to redeem the CREDIT CERTIFICATES contained in upcoming Bowker shipments.

> So sign up today! Credit Certificates will be included in shipments of all our Bowker products only until March 31, 1991 and redeemable until June 30, 1991.