macOS Sierra in easy steps explains the foundations of macOS Sierra: the Dock and the Finder. Then, it reveals a raft of ways in which the reader can make the most of macOS Sierra:

Multi-Touch navigation options for getting around in macOS Sierra.
Working with and managing your apps.
Productivity options on your Mac.
Getting online with Safari, Mail, Messages and FaceTime.
Managing your digital lifestyle for photos, music, video, books and games.
The invaluable iCloud online function for backing up and sharing your files.

There is also a chapter on troubleshooting and keeping macOS Sierra in tiptop shape.

macOS Sierra in easy steps also covers the new features in the operating system, which include:

Siri, Apple''s Digital Personal Assistant, is now available on macOS Sierra. Previously only included with mobile devices such as the iPhone and iPad, Siri can now be used on a Mac to find photos or specific files, send messages, enter calendar events and search the Web. It can also be used to book restaurants and book taxis.
The Photos app has improved face, object and subject recognition and the new Memories function groups photos by experiences and can even turn them into movies.
Text messages in the Messages app can be created with a wider range of content, including enhanced emojis and full-screen animations.
The iTunes interface has been enhanced to fully incorporate Apple Music and it is now easier to find and organize music.
Apple Pay, Apple''s contactless payment system, can be used for online shopping, using the Safari browser with macOS Sierra.
Universal Clipboard. This function enables you to copy an item on your Mac and then paste it into another Apple device, such as an iPhone or an iPad, if they are using iOS 10.
iCloud Drive has been enhanced so that it can be used to store the Desktop and Documents folders from your Mac, thus making them available on other compatible devices.
macOS Sierra can free up space on your Mac by looking for files that are rarely used and storing them in the cloud, leaving more space on your computer for the files that are used most regularly.

Covers OS X 10.12, due for release Autumn 2016.