You need an online presence so people can find you but not necessarily social media. Consider a website; https://www.wix.com/ or https://squareup.com/us/en/online-store. Source: 9 months ago

There's also SquareUp websites by Square (as in the card readers/point of sale system - which many small businesses use). Source: about 1 year ago

See https://squareup.com/us/en/online-store. I have my own website but use Square for a POS app at markets. Source: about 1 year ago

You mentioned using Square in another comment. Use Square Online's Free plan to set up a free website that integrates with your existing Square account. You won't get all the customization of a full website, but it'll be an effective solution for buyers to purchase the book and for you to manage orders. Source: about 1 year ago

Hey there, have you tried Square? We only charge 2.9% + 30 cents per transaction. https://squareup.com/us/en/online-store feel free to message me. Source: over 1 year ago

Spotify isn't doing anything unique here, and it's not really a marketing campaign to explain away their UI. It's more of a showcase for hiring professionals, developers/designers/etc. Facebook has a similar one -> https://design.facebook.com/. Source: almost 3 years ago

Also, read anything published by Design @ Facebook. Source: about 3 years ago