Some of the sentences are a trifle awkward, like how the very first chapter starts - "In this chapter, get an overview...". Also, that first paragraph of the first chapter ends like this - "There is nothing that works better than an example. Some say this is the only thing that works." ??? Ha ha! Is there a joke here, or is this inadvertant? It sounds like the example is the only part of the chapter that is correct. The slender nature of the book comes in no small way from how it assumes you already are conversant in javascript and you know the Model View Controller [MVC] pattern. A major advantage of javascriptMVC is that it is compatible with server side solutions like Django, Node.js and Ruby on Rails. Crucial because it enhances the possible market share. It addresses a recent problem with web server coding. Where the server side has fragmented into those frameworks and others. There are some outright typos. Like on page 65 - "Since we bound the anonymous function to the change event". Bound should be bind. The technical reviewer should have caught this, as well as the earlier infelicitations. Chapter 6 on making an app also functions well as a brief guide to a general application development process. It provides an instantiation of that for the book's subject. You might just want to stick to using pencil and paper to make wireframes, as recommended by the author.