Studies & Data
Reference data on children's reading habits and development.
Childhood reading statistics 2025: a reference dataset
A citable dataset of children's reading habits in 2025 — reading enjoyment and daily reading rates from the National Literacy Trust — with a chart and sources.
Child development milestones by age: a reference dataset
A reference table of typical child development milestones from 1 to 5 years across motor, language and social-emotional domains. General patterns, not a checklist.
Stages of learning to read: a reference by age
A reference of the typical stages of learning to read, from pre-reader to fluent, with the approximate age, what happens at each stage and how adults can help.
How many words a year does daily reading add? A computed model
A transparent, computed model of yearly word exposure from daily reading, showing words per year for 5, 10, 20 and 30 minutes a day at a stated reading rate.
Screen time guidelines by age: a reference dataset
A citable reference of recommended daily screen time by age for young children, from the WHO and the American Academy of Pediatrics, with a chart and sources.
How much sleep do children need by age? A reference dataset
A citable dataset of recommended daily sleep by age for children, from the AASM (endorsed by the AAP), with a chart and sources.
Children's vocabulary growth by age: a reference dataset
A reference dataset of typical expressive vocabulary size by age from 12 months to 6 years, with a chart. Ranges are approximate and vary widely between children.