There are 1 book by Patricia W. O'Brien on BookOrb. A strong starting point is Man in the Moon Has the Flu (2018). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Patricia W. O'Brien written?
BookOrb lists 1 book by Patricia W. O'Brien.
Where should I start with Patricia W. O'Brien?
A good starting point is Man in the Moon Has the Flu (2018).
What is the Patricia W. O'Brien books in order list?
In publication order: 1. Man in the Moon Has the Flu (2018).