About Letter & Line

Hi, I’m Nina, the illustrator, mom of two, and sticker-obsessed founder behind Letter & Line.

I started this little shop to make life with toddlers just a little easier (and a lot more fun). As a mom in the thick of potty training, power struggles, and snack negotiations, I needed tools that actually worked and looked cute on the fridge. So I put my background in design to work and began creating playful, practical reward stickers and printable charts to help bring calm to the daily chaos.

Letter & Line specializes in toddler reward stickers, potty training charts, and printable routine tools that support your parenting goals — whether you're teaching manners, tackling that morning meltdown, or just trying to get your kid to poop in the potty. Our much-loved potty training sticker sets are designed with real-life milestones in mind (from "fearless flusher" to "nappyless naps") and pair perfectly with our time-based potty charts to keep kids motivated without overwhelm.

I want you to know that everything here is hand-drawn, mom-tested, and thoughtfully designed to turn everyday moments into little victories. It's important to me that these products lighten the load for real parents, because I'm in the trenches just like you. And at the end of the day, a single sticker can mean the world to a tiny human, and a little backup can mean the world to you.

Thanks for being here. You’ve got this! (And I’ve got the stickers.)

—Nina