There are 3 books by Olive O'Brien on BookOrb. A strong starting point is Eco Zico (2010). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Showing 2 of 3 titles.
Frequently asked questions
How many books has Olive O'Brien written?
BookOrb lists 3 books by Olive O'Brien.
Where should I start with Olive O'Brien?
A good starting point is Eco Zico (2010).
What is the Olive O'Brien books in order list?
In publication order: 1. Eco Zico (2010), 2. Perry the Polar Bear Goes Green (2010).