Contact Us

Questions? Fill out the contact form below and we'll get right back to you.


Toll-Free: (800) 728-0032
Fax: 212-825-1315
Mon-Sun: 8:00AM-8:00PM Eastern Time


Knowledge Delivery Systems, Inc.
110 William Street, Ste 2201
New York, NY  10038


For questions about KDS' professional development offerings or our online learning solution, please write to

If you are experiencing difficulty purchasing or using the online classroom, please write to

To discuss your school or district's professional development program needs, please write to