Start with their words
Add sight words, spelling-list words, or names the adult is comfortable using.
Books open wide here, two pages at a time. Rotate to landscape to keep reading.

Turn a child's familiar words into a short Heheding book with one safe ridiculous twist. Start with three complete stories free; each has eight illustrated pages plus its cover.
Use the words that are already in the reader's routine, then give the page a reason to be reread.
Add sight words, spelling-list words, or names the adult is comfortable using.
A moon desk, serious hat, or odd job gives the next line somewhere to go.
The adult creates, checks, saves, shares, and pays. The child gets reading time, not checkout.
Make the first story