Reddit reviews Journey (Aaron Becker's Wordless Trilogy)

My two year old and I love Journey by Aaron Becker.

I would highly recommend the Journey Trilogy, here’s book one
My daughter loves it.

As with reading, writing improves with practice. Maybe have him keep a journal. He spends x amount of time writing everyday. I would build writing stamina, start with 5 minutes build to 10 after a few weeks, then up it to 15. I wouldn’t go higher than 20/30 minutes especially if he doesn’t enjoy it, because this could cause him to revolve against writing. He can write whatever he wants to during this time: stories, a description of his day, his thoughts as they flow through his head... if he is really having issues getting going have him draw a picture of a story/event and then write about it (or give him a picture and have him write a story about it). Having my daughter do this improved both her handwriting legibility AND her composition skills.

You could also look into books like “Journey” by Aaron Becker. These are no words only picture books which tell a story. The kids describe what is happening on the pages making up their own descriptions, dialogue, and plot. Even if he isn’t writing while narrating these he is still composing the story. My daughter LOVES these.

Not exactly along the lines of encouraging reading but my 5 year old really likes Journey. It's a picture book of an adventure that they get to make up their own story to go along with the pictures.