Ray O’Ryan has loved space stories ever since he watched the very first episode of Star Trek. He loves to imagine what traveling across the galaxy might be like and is a bit jealous of Galaxy Zack in this regard. Ray lives in the beautiful Catskill Mountains in upstate New York with his wife and two lovable, zany cats named Stitch and The Way.
A game turns real, threatening Zack's world. Can he stop the villain?
A young boy moves to a new planet with his family and navigates a new school and friendships.
Space camp turns chaotic. Can Zack unite his cabin mates before summer is ruined?
Nebulon faces a cosmic blackout. Can Zack adapt without his tech comforts?
A galactic race turns chaotic. Can Zack lead his team to victory amidst turmoil?
Zack faces unexpected challenges on a galactic winter vacation. Can he overcome them before heading home?
A lost pterosaur needs help returning home. Can Zack and his team navigate the prehistoric world?
18
Authored
0
Illustrated
2
Collaborators
Picture books
13
Chapter books
5
Books published each year, stacked by book type.
The share of the catalog represented by each book type.
18
books
Every title in the Bookroo library, ordered from newest to oldest.
A game turns real, threatening Zack's world. Can he stop the villain?
Zack faces unexpected challenges on a galactic winter vacation. Can he overcome them before heading home?
Nebulon faces a cosmic blackout. Can Zack adapt without his tech comforts?
A galactic race turns chaotic. Can Zack lead his team to victory amidst turmoil?
Space camp turns chaotic. Can Zack unite his cabin mates before summer is ruined?
Zack's science project malfunctions at the Intergalactic Fair. Can he fix it before chaos ensues?
Zack must mend his sisters' cosmic feud before it spirals out of control.
Zack faces eerie events that challenge his disbelief in ghosts this Halloween.
A planet-hopping boy's Earth visit turns chaotic when his dog goes missing.
A robot's crush on Zack spirals into chaos. Can he fix it?
Can Drake conquer his fear of water before their next space adventure?
Zack faces a dilemma: win fairly or cheat on the candy planet.
Zack's Christmas plans change with a cosmic storm and mysterious green snow.
A boy is excited to show his friend from Earth around his new home on the planet Nebulon
A boy befriends a monster-like alien who is visiting his school on the planet Nebulon
A young boy named Zack Nelson explores the planet Juno with his school's Explorers Club and makes a groundbreaking discovery
A young boy moves to a new planet with his family and navigates a new school and friendships.
A lost pterosaur needs help returning home. Can Zack and his team navigate the prehistoric world?
Creative company
The authors and illustrators who share the credits across Ray O’Ryan's books.
