Answers found here

Apple's latest Mac software, macOS Mojave, is a glorious boxcar full of new features and refinements. What's still not included, though, is a single page of printed instructions. Fortunately, David Pogue is back, delivering the expertise and humor that have made this the #1 bestselling Mac book for 18 years straight.

The important stuff you need to know

• Big-ticket changes. The stunning new Dark Mode. Self-tidying desktop stacks. FaceTime video calls with up to 32 people. New screen-recording tools. If Apple has it, this book covers it.
• Apps. This book also demystifies the 50 programs that come with the Mac, including the four new ones in Mojave: News, Stocks, Home, and Voice Memos.
• Shortcuts. This must be the tippiest, trickiest Mac book ever written. Undocumented surprises await on every page.
• Power users. Security, networking, remote access, file sharing with Windows--this one witty, expert guide makes it all crystal clear.

MacOS Mojave gives the Mac more polish, power, and pep-- and in your hands, you hold the ultimate guide to unlocking its potential.