The article reveals the problem of creating and improving e-textbooks on technical disciplines on the example of development of electronic textbook for physics study at technical universities. The disadvantages of e-textbooks based on standard platforms and templates are considered. The problems of using Web technologies for the improvement of such textbooks are discussed. There are numerous platforms and templates for creating electronic textbooks. However, our analysis and experience with such resources showed their inconvenience and inadequacy for the needs of the engineering specialties education: students find it difficult to navigate in a large amount of material, many equations, massive evidence base, large graphic material. The presented e-book configuration is created by JavaScript direct programming. The e-book significantly expands the visibility of the material (color accented graphics, videos, animation, etc.), improves usability (thoughtful intuitive navigation, one-click equations, tips, etc.) using the capabilities of computer technology. It contains a variety of original demo animation, videos, and color drawings worked out to the smallest detail. Many convenient hyperlinks are available at the click (pop-up formulas, tips, help and additional information). The e-book also optimizes the student’s independent work (examples of detailed step-by-step solution of problems, questions for self-testing with hidden answers, etc.). The e-book is offered to students of all technical specialties and all forms of university education. The application of this e-book involves acquiring theoretical knowledge and practical skills in physics.