Agustina co-founded Happy Rainbow Books (2020–2025), an educational children's book and learning-games brand, and led end-to-end product design for its books and games — from concept development and content architecture through prototyping, usability testing, and manufacturing-ready production specs.

Her work included defining the visual identity, building interaction flows for the learning games, and managing production from manufacturing in China through import and launch in the US — delivering a cohesive product line built for both learning outcomes and manufacturing quality.

She also designed the brand's website, social media content, marketing materials, trade show booths, and presentations.

​

Take a look at happyrainbowbooks.com and @happyrainbowbooks to learn more.