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Off By One · Code & math

Off By One collects the bugs, proofs and late-night commits every programmer and math major recognizes. Rubber ducks, exercises left to the reader and code that worked once and never again. Wear the stack trace with pride.

AllGamingLab GradeOff By OneDeep FieldFuture TensePure FormAncientsPayloadSite BThe RiftGame NightInsert CoinTall TalesLights OutCampus LifeBrain FoodLoud & ClearGood CompanyField NotesDeep WaterGrow LightDeep TimeForecastPassportVital SignsShop ClassGame Day
Preview onDefaultCaseDeskmatBottleNotebookStickersCoastersKeychainWall printPhone standHeadphone standController stand
StyleAllIllustratedBadges & stampsFull-bleed artMade to touchTypographicSortFeaturedNewPrice ↑Price ↓

4 designs · shown on Hardcover Notebook

184.0AA2.04.0mmcN123456784.0 MM OF TRAVELACTUATION AT 2.0. I BOTTOM OUTUVPRINTS.USstaff pick
Off By One· Notebook

Four Millimetres of Travel

$19 · from $8

947844LOCAL MAXIMUMTHE GRADIENT IS ZERO UP HEREUVPRINTS.USstaff pick
Off By One· Notebook

Local Maximum

$19 · from $8

FIVE NINES99.999% UPTIME. 0% SLEEPUVPRINTS.USstaff pick
Off By One· Notebook

Five Nines Closet

$19 · from $8

nt1lognnnlognn²2ⁿIT WORKED FOR SMALL NTHEN N GREW. SO DID 2^N.UVPRINTS.US
Off By One· Notebook

Worked for Small n

$19 · from $8

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Gaming · Four game communitiesLab Grade · Science & engineeringDeep Field · Space & astronomyFuture Tense · Sci-fi & robotsPure Form · Abstract & generativeAncients · For the Dota 2 crowdPayload · For the Overwatch crowdSite B · For the Counter-Strike crowdThe Rift · For the League crowdGame Night · Board games & puzzlesInsert Coin · Retro tech & pixelsTall Tales · Myth & fantasyLights Out · Spooky & darkCampus Life · College survivalBrain Food · Food & coffeeLoud & Clear · Music & soundGood Company · Pets & animalsField Notes · Nature & outdoorsDeep Water · Ocean & marineGrow Light · Plants & gardenDeep Time · Dinosaurs & fossilsForecast · Weather & seasonsPassport · Travel & transitVital Signs · Medicine & anatomyShop Class · Tools & makingGame Day · Sports & rec