Holt, Rinehart and Winston, a Harcourt Classroom Education Company, is based in Austin, Texas. Holt is a recognized leader in secondary educational publishing. Since 1866, we have been in the business of helping teachers teach and students learn. By providing a wide range of instructional materials that include curriculum-based textbooks, CD-ROMs, videodiscs, and other support and reference materials, Holt, Rinehart and Winston is creating learning adventures.