UX Field Principle 1: Everyone Can Be Great at UX Principle 2: Be Strategic About Using These Principles Principle 3: Don’t Be Afraid to Ship Something Simple… Principle 4: …But Complexity Can Be Good for Some Users Principle 5: Use A/B Testing to Test Your Ideas Principle 6: Test with Real Users Principle 7: Nobody Cares About Your Brand Typography Principle 8: Don’t Use More than Two Typefaces Principle 9: Users Already Have Fonts on Their Computers, So Use Them Principle 10: Use Type Size and Weight to Depict an Information Hierarchy Principle 11: Use a Sensible Default Size for Body Copy Controls Principle 12: Use an Ellipsis to Indicate That There’s a Further Step Principle 13: Make Interactive Elements Obvious and Discoverable Principle 14: Make Buttons a Sensible Size And Group Them Together by Function Principle 15: Make the Whole Button Clickable, Not Just the Text Principle 16: Don’t Invent New, Arbitrary Controls Principle 17: Search Should Be a Text Field with a Button Labeled “Search” Principle 18: Sliders Should Be Used for Non-Quantifiable Values Only Principle 19: Use Numeric Entry Fields for Precise Integers Principle 20: Don’t Use a Drop-Down Menu If You Only Have a Few Options Principle 21: Allow Users to Undo Destructive Actions Principle 22: Optimize Your Interface for Mobile Content Principle 23: Use “Infinite Scroll” For Feed-Style Content Only Principle 24: If Your Content Has a Beginning, Middle, and End, Use Pagination Principle 25: Allow Users to Accept or Reject Cookies with One Click Principle 26: Help Users Understand Their Next Steps from “Empty States” Principle 27: Make “Getting Started” Tips Easily Dismissable Principle 28: When a User Refreshes a Feed, Move Them to the Last Unread Item Navigation Principle 29: Don’t Hide Items Away in a “Hamburger” Menu Principle 30: Make Your Links Look like Links Principle 31: Split Menu Items Down Into Subsections, so Users Don’t Have to Remember Large Lists Principle 32: Categorize Settings in an Accessible Way Principle 33: Repeat Menu Items in the Footer or Lower Down in the View Iconography Principle 34: Use Consistent Icons Across the Product Principle 35: Don’t Use Obsolete Icons Principle 36: Don’t Try to Depict a New Idea with an Existing Icon Principle 37: Never Use Text on Icons Principle 38: Always Give Icons a Text Label Input Principle 39: Use Device-Native Input Features Where Possible Principle 40: Streamline Creating and Entering Passwords Principle 41: Always Allow the User to Paste into Password Fields Principle 42: Don’t Attempt to Validate Email Addresses Principle 43: Respect Users’ Time and Effort in Your Forms Principle 44: Pick a Sensible Size for Multiline Input Fields Principle 45: Use Animation with Care in User Interfaces Principle 46: Use the Same Date Picker Controls Consistently Principle 47: Pre-Fill the Username in “Forgot Password” Fields Principle 48: Make Your Input Systems Case-Insensitive Principle 49: Chatbots Are Usually a Bad Idea Forms Principle 50: If Your Forms Are Good, Your Product Is Good Principle 51: Validate Data Entry as Soon as Possible Principle 52: If the Form Fails Validation, Show the User Which Field Needs Their Attention Principle 53: Users Don’t Know (and Don’t Care) About Your Data Formats Principle 54: Pick the Right Control for the Job User Data Principle 55: Allow Users to Enter Phone Numbers However They Wish Principle 56: Use Dropdowns Sensibly for Date Entry Principle 57: Capture the Bare Minimum When Requesting Payment Card Details Principle 58: Make It Easy for Users to Enter Postal or ZIP Codes Principle 59: Don’t Add Decimal Places to Currency Input Principle 60: Make It Painless for the User to Add Images Progress Principle 61: Use a “Linear” Progress Bar If a Task Will Take a Determinate Amount of Time Principle 62: Show a Numeric Progress Indicator on the Progress Bar Principle 63: Show a “Spinner” If the Task Will Take an Indeterminate Amount of Time Accessible Design Principle 64: Contrast Ratios Are Your Friends Principle 65: If You Must Use “Flat Design” Then Add Some Visual Affordances to Controls Principle 66: Avoid Ambiguous Symbols Principle 67: Make Links Make Sense Out of Context Principle 68: Add “Skip to Content” Links Above the Header and Navigation Principle 69: Never Use Color Alone to Convey Information Principle 70: If You Turn off Device Zoom with a Meta Tag, You’re Evil Principle 71: Give Navigation Elements a Logical Tab Order Principle 72: Write Clear Labels for Controls Principle 73: Make Tappable Areas Finger-Sized Journeys and State Principle 74: Let Users Turn off Specific Notifications Principle 75: Each Aspect of a User’s Journey Should Have a Beginning and End Principle 76: The User Should Always Know What Stage They Are at in Any Given Journey Principle 77: Use Breadcrumb Navigation Principle 78: Users Rarely Care About Your Company Principle 79: Follow the Standard E-Commerce Pattern Principle 80: Show an Indicator If the User’s Work Is Unsaved Principle 81: Let Users Give Feedback, but Don’t Hassle Them Principle 82: Don’t Use a Vanity Splash Screen Principle 83: Make Your Favicon Distinctive Principle 84: Add a “Create From Existing” Flow Principle 85: Make It Easy for Users to Pay You Principle 86: Give Users the Ability to Filter Search Results Principle 87: Your Users Probably Don’t Understand the Filesystem Principle 88: Show, Don’t Tell Terminology Principle 89: Be Consistent with Terminology Principle 90: Use “Sign In” and “Sign Out”, Not “Log In” and “Log Out” Principle 91: Make It Clear to Users If They’re Joining or Signing In Principle 92: Standardize the Password Reset Experience Principle 93: Write Like a Human Being Principle 94: Choose Active Verbs over Passive Expectations Principle 95: Search Results Pages Should Show the Most Relevant Result at the Top of the Page Principle 96: Pick Good Defaults Principle 97: Only Use Modal Views for Blocking Actions Principle 98: Give Users the Experience They Expect Principle 99: Decide Whether an Interaction Should Be Obvious, Easy, or Possible Principle 100: “Does It Work on Mobile?” Is Obsolete UX Philosophy Principle 101: Don’t Join the Dark Side Bonus: Strive for Simplicity Other Books You May Enjoy Index