The Wingdale owl family (Mom, Dad, Eva, Humphrey and Baby Mo) live in a tree in, of course, Treetopolis. When Eva receives a new diary, she faithfully records all her adventures, concerns, problems, triumphs, and sadness in the diary.

Each of the 13 books (so far) in this series focus on one big event in Eva's world. The plots feature a mystery that Eva solves and most readers of this series will solve. Friendships, working together, and solving problems are what Eva and her friends do.

The digital illustrations are a major part of the storytelling. There are collage-like illustrations are on each page. The connection between image and words is very clear. It would be easy to extend activities by encouraging art projects.

The author uses clever references to owls: "What a hoot," "Anyhoot," "sticking her beak into my business," and Owliverse."Readers will enjoy searching for connections. Speech bubbles are used for dialog between characters.

These books by Rebecca Elliott have gentle plots, interesting characters, and are for readers beginning "easy readers." The first book is Eva's Treetop Festival (2015). Each book has 74 pages (Lexile 530-620). At the end of each book is, "How much do you know about…?" Questions follow and a final suggestion of further activities.

Many of the books in this series are available as e-books on Overdrive.