These are broad patterns, not rules. Children learn to read at different times, and a confident 5-year-old and a 7-year-old who started late may want the same books. Use the ages as a starting point, then follow your child.
Two different things grow with age: what a child can read on their own, and what they can enjoy listening to. The second runs well ahead of the first, so keep reading aloud long after they can read.
What should children read at 2 to 3?
Short books read aloud: one idea per page, lots of rhythm, rhyme and repetition, and pictures to point at and name. Stories about everyday things, like bath time, bedtime and animals, are the favorites. Attention is short, so a story that takes a few minutes is plenty, and the same book again and again is normal and good.
In InkStak: Read-aloud stories at age 2 or 3: very short, with simple words and a picture for every idea. Rhyming is a good fit.
What should children read at 4 to 5?
Picture books with a simple plot (a problem and how it gets solved) and a character to care about. Rhymes still delight. Many children start learning letter sounds, so short decodable texts can join the read-alouds, a few minutes at a time.
In InkStak: Read-aloud stories at age 4 or 5, and Kid Reads Level 1 for a child starting to sound out words.
What should children read at 6 to 7?
Two kinds of reading side by side. On their own, children practice with decodable stories matched to the phonics they are learning. Read to them, they can follow longer picture books and early chapter books, with richer words than they can read themselves.
In InkStak: Kid Reads Levels 2 to 4 for their own reading; read-aloud stories at 6 or 7, or a chapter book (Creator plan) for longer listening.
What should children read at 8 to 9?
Many children read short chapter books on their own: a chapter a night, with a story that carries over. Reading aloud to them still matters, with books a little above their own level that stretch vocabulary and imagination.
In InkStak: Chapter books at age 8 or 9 (Creator plan), continued a chapter at a time.
What should children read at 10 to 12?
Longer chapter books with more complex characters, subplots and themes. Series are a big draw. Nonfiction that explains how the world works becomes a favorite for many.
In InkStak: Chapter books at age 10 to 12, and Explainer stories for the questions they ask.