Online Training Solutions, Inc.
e-mail Customer.Service@otsi.com
toll-free phone (888) 308-6874
toll-free fax (888) 308-6875
Our Books
OTSI is the creator of the Quick Course series of books for beginning- to intermediate-level learners. We've also created many books in the best-selling Step by Step series and certification-specific Study Guides published by Microsoft Press.
