The Node Beginner Book » A comprehensive Node.js tutorial: "Intended audience
This document will probably fit best for readers that have a background similar to my own: experienced with at least one object-oriented language like Ruby, Python, PHP or Java, only little experience with JavaScript, and completely new to Node.js.
Aiming at developers that already have experience with other programming languages means that this document won't cover really basic stuff like data types, variables, control structures and the likes. You already need to know about these to understand this document.
However, because functions and objects in JavaScript are different from their counterparts in most other languages, these will be explained in more detail."
