Second edition, April 2018. "Office 365 from Scratch" is an introduction to apps and services included in the Office 365 Enterprise subscriptions and a description of how they work together. After a presentation of the platform, I describe the most important parts, Exchange, Office, SharePoint and Groups. Other chapters introduce Delve, OneDrive, Stream, Teams, Planner, StaffHub, Yammer, Flow, PowerApps, Power BI and Sway. The URLs in "Office 365 from Scratch" point to my articles with video demonstrations in the kalmstrom.com Tips section on subjects that are similar to what I describe in the book. "Office 365 from Scratch" is primarily intended for administrators, but I hope the book will also be useful for others who want to learn about the possibilities given with their Office 365 accounts. Peter Kalmstr m