- Seasons of the Cat
- Seasons of the Dog
- Seasons of the Moon Series, Books 1-4: Six Moon Summer, All Hallows' Moon, Long Night Moon, and Gray...
- Seasons Within
- Seastellar
- Seaward Born
- Seb Cage Begins His Adventures
- Seb's Train
- Sebastian and the Hidden Book
- Sebastian Darke: Prince of Explorers
- Sebastian Darke: Prince of Fools
- Sebastian Darke: Prince of Pirates
- Sebastian Shy and the Shadow Puppet Monster Friend
- Sebastian the Troublemaker
- Sebastian's adventure on his way to school
- Sebastians Generationenschiff
- Sebastián
- Sebastián y su aventura camino a la escuela
- Seclusion Point
- Second Base
- Second Book of Tales
- Second Chance
- Second Chances
- Second Chances - A "Chosen" Short Story 2.5
- Second Chances Coloring Book Pages.indd
- Second Chronicles of Oz
- Second Daughter
- Second Daughter (The Royals of Dharia, Book Two)
- Second Edition of A Discovery Concerning Ghosts
- Second Face
- Second Family
- Second Fiddle
- Second Grade Book For Girls: Reading is Fun!
- Second Grade Geography Workbook: Tornadoes, Cyclones and Typhoons
- Second Grade History Workbook: American Independence
- Second Grade Reading For Kids: Reading is Super Fun!
- Second Grade Science Workbook: Human Anatomy - Our Bodies
- Second Grade Stinks
- Second Helpings
- Second Impact
- Second Kiss
- Second Shift
- Second Sight
- Second Sight (Sojourner Series Book 3)
- Second Skin
- Second Sleep
- Second Son
- Second Son
- Second Star
- Second Star to the Fright
- Second String Center #10
- Second Term at Trebizon
- Second Time's the Charm #7
- Second to None
- Second Wind
- Seconde nature
- Secondhand Charm
- Secondhand Slice
- Secondhand Summer
- Secondhand Wishes
- Seconds
- Seconds away
- Seconds Away (Book Two)
- Seconds Before Sunrise
- Seconds Out
- Secret
- Secret Academy - Gefährliche Liebe (Band 2)
- Secret Academy - Verborgene Gefühle (Band 1)
- Secret Admirer
- Secret Agent
- Secret Agent Disco Dancer: Did Somebody Say Pizza?
- Secret Agent Disco Dancer: Frosted Flake
- Secret Agent Disco Dancer: Taco Tuesday
- Secret Agent Disco Dancer: The Zombies Ate My Pizza
- Secret Agent Disco Dancer: Was It The Tira Misu?
- Secret Agent Grandma (Give Yourself Goosebumps #16)
- Secret Agent Josephine's ABCs
- Secret Agent Josephine's Numbers
- Secret Agent Robot Command
- Secret Army
- Secret City
- Secret Clique (Replica #5)
- Secret Coders
- Secret Coders: Monsters & Modules
- Secret Coders: Paths & Portals
- Secret Coders: Potions & Parameters
- Secret Coders: Robots & Repeats
- Secret Coders: Secrets & Sequences
- Secret Diary
- Secret divorce
- Secret Fire 1. Die Entflammten
- Secret Fire 2. Die Entfesselten
- Secret Friends' Stuff
- Secret Game. Brichst du die Regeln, brech ich dein Herz (Romantic Suspense meets Dark Academia)
- Secret Garden
- Secret Genius
- Secret Girls' Stuff
- Secret Heart
- Secret Holiday
- Secret Horse
- Secret Identity
- Secret Illusions (Salmon Run - Book 4)
- Secret in Grandma's Attic
- Secret in St. Something
- Secret in the Sand
- Secret Keeper
- Secret Kingdom 1
- Secret Kingdom 10
- Secret Kingdom 11
- Secret Kingdom 12
- Secret Kingdom 2
- Secret Kingdom 3
- Secret Kingdom 4
- Secret Kingdom 5
- Secret Kingdom 6
- Secret Kingdom 7
- Secret Kingdom 8
- Secret Kingdom 9
- Secret Letters at Trebizon
- Secret Letters From 0 To 10
- Secret Lies
- Secret Life of Elephants
- Secret Lives
- Secret Magics of Maine
- Secret of a T-Rex
- Secret of Betrayal
- Secret Of Bradbury Mansion
- Secret Of Devil Lake
- Secret of Light
- Secret of Omordion
- Secret of the Azure Stone
- Secret of the Cave
- Secret of the Crystal Dragon
- Secret of the Dragon's Breath
- Secret of the Dragon's Eye
- Secret of the Haunted Cave
- Secret of the Lake: Book 1
- Secret of the Night Ponies
- Secret of the Red Arrow