This portable reference to PowerShell summarizes the command shell and scripting language and provides a concise guide to the many tasks that make PowerShell so useful. If you're a busy administrator and don't have time to plow through huge books or in-depth online searches, this is the ideal on-the-job tool.
Written by PowerShell team member Lee Holmes and excerpted from his PowerShell Cookbook, this edition offers up-to-date coverage of Windows PowerShell 5.1 and open source PowerShell Core up to 7 and beyond.
Beginning with a guided tour of PowerShell, this handy guide
PowerShell language and environmentRegular expression referenceXPath quick reference .NET string formatting .NET DateTime formattingSelected .NET classes and their usesWMI referenceSelected COM objects and their usesStandard PowerShell verbs
Only a quick reference for powershell, but a good one for me: efficient and with some good examples. Be sure to look at the content to know if it has what you want: it neither list "standard" cmdlet (so it's not specific to administrator, poweruser or developper), nor explain how to create one with .NET.
Bad: About 50% of this book contains description of regular expressions, XPath, string formatting options and other topics that are NOT specific for PowerShell, but there is NO (even short) description of standard PowerShell cmdlets.