Think of it as portable office hours! The Interactive Video Skillbuilder CD-ROM contains hours of helpful, interactive video instruction. Watch as Ph. D. statistician and award-winning teacher from Boston University, Lisa Sullivan, walks you through key examples from the text, step by step Ė giving you a foundation in the skills that you need to know. Each example found on the CD is identified by the video icon located in the margin. The IVSB CD-ROM is included at no additional charge with the purchase of a new text.