Great list of Tutorials / Quick Guides from Mac Rumors

Design

• How to Find Notifications in iOS 11’s New Lock Screen and Cover Sheet
• How to Use and Customize Control Center in iOS 11
• Bluetooth and Wi-Fi Aren’t Fully Disabled When Toggled Off in Control Center on iOS 11
• How to Use the Redesigned Messages App Drawer in iOS 11
• How to Use Automatic Setup in iOS 11 to Transfer Settings to a New Device
• How to Hide Text Previews for Every App Notification on iOS 11’s Lock Screen
• How to Prevent Apps From Showing Up in Search and Siri Suggestions in iOS 11

iPad

• How to Use Drag and Drop on an iPad and iPhone With iOS 11
• How to Use the New iPad Dock in iOS 11
• How to Use the iPad App Switcher in iOS 11
• How to Use the New Files App in iOS 11
• How to Turn a Photo Into an Apple Watch Face in iOS 11 and watchOS 4
• How to Use the iPad’s New Flick Keyboard in iOS 11

Apps

• What’s New in Maps in iOS 11: Indoor Mapping, Lane Guidance and Speed Limits
• PSA: Snapchat Still Notifies You When Someone Screen Records Privately Messaged Snaps on iOS 11
• Safari in iOS 11: Enabling Cross-Site Tracking Prevention to Protect Your Privacy
• How to Make an Apple Music Profile to Connect With Friends in iOS 11
• How to Use Instant Markup to Quickly Edit Screenshots in iOS 11
• How to Use the New iOS 11 Document Scanner in Notes on iPad and iPhone
• How to Edit Live Photos in iOS 11
• How to Use Instant Notes on iPad in iOS 11
• How to Use New Pinning and Tables Features in Notes in iOS 11 and macOS High Sierra
• How to Capture a Live Photo in FaceTime on iOS 11 and macOS High Sierra

Accessories

• How to Set Your AirPods to Change Music Tracks in iOS 11

New Features

• How to Record Your iPhone or iPad Screen in iOS 11
• How to Use the New One-Handed Keyboard in iOS 11
• How to Enable Type to Siri in iOS 11
• How to Use Siri’s New Translation Feature in iOS 11
• How to Use Emergency SOS on iPhone in iOS 11
• How to Use Do Not Disturb While Driving in iOS 11
• How to Save Space in iOS 11 With New Storage Features
• How to Sign Up for iCloud Family Storage Plans in iOS 11

Internal Improvements

• What You Need to Know About HEIF in macOS High Sierra and iOS 11
• What You Need to Know About HEVC Video in macOS High Sierra and iOS 11

Accessibility

How to Use the One Handed Keyboard – from 9 to 5 Mac

10+ Accessibility Features Coming with iOS 11 – from Luis Perez