Webpack and React. They are interesting up and coming technologies that work well together. In the book I develop a little Kanban application. In the process you'll learn about the technology and see how to apply it in practice.
If you are interested in frontend development, check out the online version. The project source is also available. I hope you check it out and spread the word!
The book is still work in progress. This is a good chance to help me develop the content further and I welcome feedback. Minimal financial support wouldn't hurt either.
Enjoy the book!