This is an easy to read picture book that tells the story about a puffin whose journey gets disrupted by the fog.  The fog can also be interpreted as a metaphor for harder times in life. The message of the book is that when the fog rolls in, it's harder to see in front of you but it will go away and things will look better and brighter. The book has beautiful illustrations so it's good for 1-2 year olds. There are very few words on each page, so 4-5 year olds can try to read along.