I'm user of emacs for 2 years now. But before reading this book I couldn't find enough time to master some essential parts of emacs. While reading, i kept asking myself "How could i live without it before? It's so simple and yet so useful". Mickey packed essential parts of emacs in such a great way, for the first time i could manage to read a technical book from cover to cover in 10 days. Many reviewers gave it 4 stars, and i can't find any good reason why. This was so simple and delightful i can't find a reason not to recommend it to every new user struggling in his path through steep learning curve. 5/5.