Xkcd

Skip to Main Content

Pickup or delivery?

All Departments

Summer Deals & More

Summer Deals & More

Shop All Flash Deals Clearance Extra Savings Grocery Electronics Beauty Home Fashion Patio & Garden Household Essentials Toys Sports & Outdoors Baby Pets Home Improvement Health & Wellness Auto & Tires

4th of July

4th of July Prep Cookout Food & Drinks Decor Fireworks Fashion Patriotic Shop Outdoor Games Party Supplies Outdoor Hosting Americana Savings Get Ready With Me Patriotic Bakery & Desserts

Grocery

All Grocery Meals Made Easy $1 Food Hub Recipe Inspiration Meat & Seafood Fresh Produce Frozen Bakery & Bread Snacks Pantry Deli Dairy & Eggs Beverages Breakfast & Cereal Baking Candy Global Cuisine Alcohol Floral Shop

Clothing, Shoes & Accessories

Clothing, Shoes & Accessories

All Clothing, Shoes & Accessories Premium Fashion New Arrivals Women Women's Plus Maternity Men Young Adult Tween Kids Toddler Baby Shoes Jewelry & Watches Bags & Accessories Swim Shop Editors' Picks

Baby & Kids

All Baby All Kids Baby Clothing Toddler Clothing Kids Clothing Bulk Baby Supplies Diapers & Wipes Baby Formula & Baby Food Nursery & Decor Kids Room Baby Travel Gear Baby Registry WIC

Pharmacy, Health & Wellness

Pharmacy, Health & Wellness

All Health & Wellness Pharmacy Vitamins & Supplements Pain Management Caregiver Hub Protein, Fitness & Weight Management Diabetes Management Allergy & Sinus Women's Wellness First Aid & Injury Recovery Vision Center Digestive Health & Wellness Cough, Cold & Flu Eyecare Kids Health & Wellness International Medicine Benefits Hub

Home, Garden & Tools

Home, Garden & Tools

All Home All Patio & Garden Tools & Home Improvement Summer Home Catalog Mainstays Kids Furniture Mattresses Kitchen & Dining Home Decor Bedding Bath Kids Rooms Appliances Storage & Organization Vacuums, Steamers & Floorcare Luggage & Travel Registry & Lists Design Your Space

Electronics

All Electronics TVs & Home Theater Laptops, PCs & Tablets Cell Phones & Accessories Headphones & Speakers Printers & Accessories Cameras & Drones Home Appliances Wearables & Smart Tech Smart Home & Wi-Fi Batteries Resold at Walmart

Gaming & Movies

Gaming & Movies

Shop All Gaming PlayStation Nintendo XBOX PC Gaming Meta Nex Playground Gaming Accessories VR Headsets & Gear Movies & TV Shows

Auto & Tires

All Auto & Tires Tires & Installation Auto Parts & Accessories Oil and Fluids Auto Detailing & Car Care Batteries & Accessories Auto Electronics Automotive Tools & Equipment Vehicles RV Parts & Accessories Rideshare & Delivery Supplies Auto Care Center Schedule an Oil Change Tire Services Schedule Battery Installation

Personal Care

All Personal Care Haircare Bath and Body Oral Care Sexual Wellness Feminine Care Deodorant Shave Men's Essentials Incontinence Suncare & Tanning

Beauty

All Beauty Premium Beauty Makeup Haircare Skincare Fragrance Nail Care Suncare & Tanning Beauty Tech & Tools The Curl Shop Men's Grooming K-Beauty Shop

Toys & Outdoor Play

Toys & Outdoor Play

All Toys & Outdoor Play Toy Savings Outdoor Play & Ride Ons Preschool Toys Dolls Building Sets & Blocks Games & Puzzles Arts & Crafts Action Figures Cars & Remote Controls Collectibles & Exclusives Toys New Arrivals Batteries

Household Essentials

Household Essentials

All Household Essentials Cleaning Supplies Laundry Paper & Plastic Air Fresheners Pest Control Dishwashing Batteries Delivery Subscriptions

Pet Supplies

Shop All Pets Pet Profiles Pet Prescriptions Premium Pets Dog Supplies Dog Food Dog Toys Cat Supplies Cat Food Cat Toys Fish & Aquatic Pets Farm Animals Small Animals Reptiles Birds

School, Office & Art Supplies

School, Office & Art Supplies

All School Supplies All Office Supplies All Arts, Crafts & Sewing Crafting Art Supplies Teacher's Classroom Shop Classroom Registry Sewing Fabric Shipping & Moving

Sports & Outdoors

Sports & Outdoors

All Sports & Outdoors Outdoor Sports Camping Boating Fishing Hunting Exercise & Fitness Sports Bikes Games & Outdoor Recreation Pools, Hot Tubs & Supplies Sports Fan Shop

Collectibles, Books & Music

Collectibles

All Collectibles New Releases Preorders Trading Cards Plush Action Figures Coins & Bullion Dolls Dollhouses

Books

All Books Comic Books

Music

All Music Musical Instruments Premium Musical Instruments Record Players

Party Supplies

All Party Supplies Cake Decorating Decorations & Kits Party Tableware Party Favors Gift Wrap & Bags Balloons Party Hats, Pinatas & More Greeting Cards Personalized Cards & Gifts

Resold

All Resold Rollbacks & More Electronics Home & Kitchen Computers & Tablets Cell Phones Pre-Loved Fashion Video Games & Consoles Beauty Tools Garden & Tools Baby Gear Vacuums

Auto Care Center Services

Auto Care Services

Auto Care Center Services Buy Tires & Schedule Installation Tire Maintenance Battery Installation Schedule an Oil Change Vehicle Maintenance Virtual Garage Find an Auto Care Center

Pharmacy

Pharmacy Home Pharmacy Delivery Refill Prescriptions Transfer Prescriptions Find a Pharmacy $4 Prescriptions Pet Pharmacy

Health Services

Telehealth Wellness Hub Birth Control Prescribing Testing & Treatment: Strep Throat, Flu & COVID-19 Medicare GLP-1 Bridge

Vaccines

Schedule now All Vaccines Flu shots COVID-19

Vision & Optical

Vision Center

Vision Home Order Contact Lenses Prescription Glasses Women's Prescription Glasses Men's Prescription Glasses Kids Prescription Glasses Prescription Sunglasses Safety Prescription Glasses Try-on Glasses Virtually Find a Vision Center Schedule Eye Exam

Insurance & Benefits

Benefit Programs

All Benefit Programs SNAP WIC Food & OTC Benefits FSA/HSA

Insurance Services

Insurance Services Home Individual & Family Plans Medicaid Renewal Medicare Information Compare Medicare Plans Pet Insurance

Registry, Lists, & Gifts

Lists

Create a shopping list Manage your lists

Registries

Registries Wedding Registry Baby Registry Classroom Registry Any Occasion Wishlist

Gift Cards

Shop all gift cards Walmart gift cards

Spark Good

Support a local charity Access nonprofit resources

Custom Cakes

Design Your Own Cake Trending Custom Cakes

Custom Cupcakes

All Custom Cupcakes Cupcake Cakes

Featured

Photo Center Same day gifts Prints Cards

Photo Gifts

Canvas Prints Mugs & Tumblers Custom T-shirts Photo Books Wall Art Blankets All Photo Gifts

Financial Services

OnePay Hub

OnePay Credit Card OnePay Cash OnePay Later Walmart MoneyCard Reloadable Debit Card

Money & Other Services

Money Center Personal Loans

Gift Cards

All Gift Cards Bulk Gift Cards Check your gift card balance Walmart Gift Cards Visa, Mastercard, & AMEX Gift Cards

Protection, Home, & Tech

Protection Services

Walmart Protection Plans AppleCare

Home & Tech Services

Assembly, Home Improvement, & Installation Services Wireless Services Home Heating & AC Installation Tech Services Energy Plans

Subscriptions

Subscriptions Home Manage Subscriptions Create a Walmart Account

Subscription Products

Household Essentials Grocery Baby Pets Vitamins Beauty Health & Wellness Personal Care

Walmart Business

Walmart Business

Shop Walmart Business About Walmart Business Walmart Business+ Walmart Services Tax Exempt Onboarding resources Business print services

Industry solutions

Point of sales solutions Technology Commercial Janitorial Facilities & maintenance Food services Office Hospitality Health & wellness

Shopping, simplified

It’s easier in the app

Discover the app Meet Sparky Store Mode Walmart Pay

Pickup & Delivery

Fulfillment options Subscriptions Substitutions

Get inspired

Recipe Library Walmart Live #IYWYK Nutrition Hub

Pickup or delivery?

Pre-Owned Books Ages 3-5 Children's Books Ages 3-5 Kids' Books Ages 6-8 Kids' Books Ages 9-12 Kids' Books Comic Strips & Cartoons General Comic Books & Graphic Novels Personal & Practical Guides Reference Books Science Books Social Science Books Technology & Engineering Books Trivia

Sort by|

Pre-Owned Books Ages 3-5 Children's Books Ages 3-5 Kids' Books Ages 6-8 Kids' Books Ages 9-12 Kids' Books Comic Strips & Cartoons General Comic Books & Graphic Novels Personal & Practical Guides Reference Books Science Books Social Science Books Technology & Engineering Books Trivia

Xkcd

Uses item details. Price when purchased online

Pre-Owned What If?: Serious Scientific Answers to Absurd Hypothetical Questions (Hardcover) $9.35

Pre-Owned What If?: Serious Scientific Answers to Absurd Hypothetical Questions (Hardcover)

current price $9.35

Pre-Owned What If?: Serious Scientific Answers to Absurd Hypothetical Questions (Hardcover)

Pre-Owned How To: Absurd Scientific Advice for Common Real-World Problems from Randall Munroe of xkcd (Paperback) by Randall Munroe $14.80

Pre-Owned How To: Absurd Scientific Advice for Common Real-World Problems from Randall Munroe of xkcd (Paperback) by Randall Munroe

current price $14.80

Pre-Owned How To: Absurd Scientific Advice for Common Real-World Problems from Randall Munroe of xkcd (Paperback) by Randall Munroe

Other options to consider

Der Witz der Relationen: Komische Inkongruenz und diagrammatisches Schlussfolgern im Webcomic XKCD., (Paperback) $38.90

Der Witz der Relationen: Komische Inkongruenz und diagrammatisches Schlussfolgern im Webcomic XKCD., (Paperback)

current price $38.90

Der Witz der Relationen: Komische Inkongruenz und diagrammatisches Schlussfolgern im Webcomic XKCD., (Paperback)

Save with

Pre-Owned What If?: Serious Scientific Answers to Absurd Hypothetical Questions (Hardcover) 0544272994 9780544272996 $8.25

Pre-Owned What If?: Serious Scientific Answers to Absurd Hypothetical Questions (Hardcover) 0544272994 9780544272996

current price $8.25

Pre-Owned What If?: Serious Scientific Answers to Absurd Hypothetical Questions (Hardcover) 0544272994 9780544272996

What If?: Serious Scientific Answers to Absurd Hypothetical Questions, (Hardcover) From $6.39

What If?: Serious Scientific Answers to Absurd Hypothetical Questions, (Hardcover)

From$639

What If?: Serious Scientific Answers to Absurd Hypothetical Questions, (Hardcover)

4 out of 5 Stars. 2 reviews

What If?2: Additional Serious Scientific Answers to Absurd Hypothetical Questions $16.49

What If?2: Additional Serious Scientific Answers to Absurd Hypothetical Questions

current price $16.49

What If?2: Additional Serious Scientific Answers to Absurd Hypothetical Questions

Thing Explainer: Complicated Stuff in Simple Words, (Hardcover) From $6.64

Thing Explainer: Complicated Stuff in Simple Words, (Hardcover)

From$664

Thing Explainer: Complicated Stuff in Simple Words, (Hardcover)

5 out of 5 Stars. 1 reviews

Save with

Thing Explainer: Complicated Stuff in Simple Words (Paperback) by Randall Munroe $27.66

Thing Explainer: Complicated Stuff in Simple Words (Paperback) by Randall Munroe

current price $27.66

Thing Explainer: Complicated Stuff in Simple Words (Paperback) by Randall Munroe

Pre-Owned How to Invent Everything: A Survival Guide for the Stranded Time Traveler (Hardcover)

Pre-Owned How to Invent Everything: A Survival Guide for the Stranded Time Traveler (Hardcover)

Pre-Owned How to Invent Everything: A Survival Guide for the Stranded Time Traveler (Hardcover)

Randall Munroe Collection 2 Books Set (How To & What If?)

Randall Munroe Collection 2 Books Set (How To & What If?)

Randall Munroe Collection 2 Books Set (How To & What If?)

Related Products

Music Matters Why Sinéad O'Connor Matters, (Paperback)
current price $15.91
Music Matters Why Sinéad O'Connor Matters, (Paperback)
Pre-Owned Popular Music Matters: Essays in Honour of Simon Frith (Paperback) 036766920X 9780367669201
current price $48.95
Pre-Owned Popular Music Matters: Essays in Honour of Simon Frith (Paperback) 036766920X 9780367669201
Music And Movement (Paperback)
current price $26.99
Music And Movement (Paperback)
Pre-Owned Steven Curtis Chapman - Signs Of Life (Paperback) 0793570409 9780793570409
current price $6.17
Pre-Owned Steven Curtis Chapman - Signs Of Life (Paperback) 0793570409 9780793570409
Pre-Owned Rethinking Music Paperback
current price $7.82
Pre-Owned Rethinking Music Paperback
English Chess Problems: Containing, in Parts I and II, a Selection of the Best Problems by English Composers, Living and Lately Deceased (Paperback)
current price $36.95
English Chess Problems: Containing, in Parts I and II, a Selection of the Best Problems by English Composers, Living and Lately Deceased (Paperback)
Daniel J. Levitin: I Heard There Was a Secret Chord: Music As Medicine (Hardcover)
current price $15.22
Daniel J. Levitin: I Heard There Was a Secret Chord: Music As Medicine (Hardcover)