Nathan Sawaya has created "Hugman" in LEGO form and is currently on LEGO Ideas gathering supporters. In addition, there are also a variety of books for kids aged 2-5. You can see below for more details:
"After years of creating awe-inspiring artwork out of LEGO bricks, Nathan is launching a new series of imagination-inspiring children’s books and we’d like to see if you’d be interested in reviewing the first four books in the series.
THE ADVENTURES OF HUGMAN books are timeless stories for kids ages 2 to 5 that follow a little brick buddy named Hugman as he and his friends think outside of the box to tackle problem solving, highlight the benefits of collaboration and teach important lessons of friendship, self-confidence and respect - all while exploring the endless possibilities and creativity with LEGO.
Inspired by Nathan’s street art sculptures and illustrated by Maarten Lenoir, each hardcover book in the series is 32 pages of engaging artwork and is great for both read alouds and readers alike." More details available on their website and LEGO Ideas.
Article Link: http://toysnbricks.com/the-adventures-of-hugman-lego-creation/