Traditional textbooks have served us well, especially for me as a beginning teacher, because the textbook was the curriculum. The concept of looking at different ways to deliver textbooks could be as simple as putting it online or making it able to be viewed on an iPad or similar device. It could be more complex by including lots of multimedia and other interactive resources. But fundamentally, even experienced teachers are looking to textbooks for guidance on what to teach, what the content should be, and what the process should be. In developing electronic textbooks, you have to hold onto those concepts. The textbook is a teacher’s guideline and roadmap. Any of the multimedia and enhanced materials that you can include to enliven instruction would attest to that.