PowerShell provides a tremendous boon to productivity for computer professionals of all types. But, you have to admit: it can be a bit daunting to get up to speed! Indeed, as someone who has a fair amount of experience using it, I still find myself having to look up how to do things–frequently. So I started keeping track of the recipes I was using the most. And came up with a list of 400 or so, published in 4 parts.

• Part 1: Help, Syntax, Display and Files
• Part 2: Variables, Parameters, Properties, and Objects
• Part 3: Collections, Hashtables, Arrays and Strings
• Part 4: Accessing, Handling and Writing Data

Though I actually wrote these a couple years back they are certainly still relevant today, just covering a bit less of the ever-expanding PowerShell universe of discourse!
(Note that at the end of each web article listed above is a link to download it as a PDF that is more tidily formatted.)