Node Package Manager Guide: Install npm + Use Commands & Modules
By Michael Wanyoike, Peter Dierx,
This step-by-step guide will show you how to install npm, and master common commands in the Node Package Manager (npm) command-line interface.
Give Grunt the Boot! A Guide to Using npm as a Build Tool
By Peter Dierx,
Peter Dierx demonstrates how flexible and powerful npm can be when used as a build tool and suggests that you might not actually need Grunt, Gulp and co.