Child Development · 6 min read
Why Bilingual Reading Matters
Reading to your child in two languages is one of the most powerful things you can do for their brain, their confidence, and their sense of who they are in the world.
What the research actually says
Studies consistently show that children raised in bilingual environments develop stronger executive function – the set of skills that includes attention, flexible thinking, and impulse control. Reading in two languages adds another layer: children who regularly hear two languages in the same story start to understand that one idea can live in multiple forms. That is not confusion; that is cognitive flexibility. Researchers at the University of Washington found that bilingual infants as young as six months old are better at ignoring distractions. The advantage compounds over time.
When to start – earlier than you might think
The window for phoneme acquisition – the ability to hear and reproduce the distinct sounds of a language – begins to narrow around age seven. This does not mean children cannot learn a second language after seven; they absolutely can and do. But the youngest years are uniquely receptive. A baby hearing Spanish lullabies and English picture books in the same evening is not overwhelmed – their brain is doing exactly what it was built to do. You do not need to be fluent to start. A bilingual book read in both languages, page by page, is enough.
Code-switching is a feature, not a bug
If your child starts mixing languages – saying “I want the perro to come inside” – this is a sign of sophisticated language processing, not confusion. Code-switching is what multilingual adults do naturally. It reflects fluency across both systems and the ability to draw from whichever resource is most expressive in the moment. Never correct it toward monolingualism. If you want to gently reinforce a word, model it: “Yes, the dog! Can you tell grandma what the dog is called in Spanish?”
Heritage language and family identity
For many families, a heritage language is not just communication – it is a thread to grandparents, to food, to music, to a place. Children who have access to that thread in their early reading life carry it differently than children who encounter it only in formal lessons. When Eva writes a bilingual story, she is thinking about the grandmother reading in Spanish while her grandchild follows in English. She is thinking about the child who will one day read that book to their own child. That is the length of time a story can travel.
A practical first step
Choose one bilingual book and commit to reading it in both languages at least once a week for a month. You do not need to translate every page perfectly. You do not need to be a teacher. You need to be present, warm, and willing to stumble through a word in another language while your child watches and learns that languages are something humans do, not something only experts have. Start with Eva’s collection – every story is crafted to make both languages feel equally at home on the page.