Series — S

5,990 series

Special Agent Caitlyn Tierney

3 books

Special Agent Constance Mandalay

1 book

Special Agent Constant Marlowe

3 books

Special Agent Emily Ray

3 books

Special Agent Mauve

2 books

Special Agent Novel Series

2 books

Special Circumstances

2 books

Special Forces and the Zombie Apocalypse

2 books

Special Forces Cadets

6 books

Special Forces Leadership and Self-Esteem Books for Kids

1 book

Special Forces: Operation Alpha Green Beret

1 book

Special Gifts

1 book

Special Investigations

3 books

Special Investigations Unit

1 book

Special Needs Parenting and Education

1 book

Special Operations

10 books

Special Operations Sitter

2 books

Special Ops Scots

4 books

Special Ops Squad

3 books

Special Ops: Homefront

8 books

Special Projects Group

3 books

Special Series

5 books

Special Tactical Units Division

1 book

Special Warfare

1 book

Special Weapons & Tactics

7 books

Species Imperative Series

3 books

Specimen

2 books

Spectacle

2 books

Spectacular Sports Series

10 books

SPECTR

2 books

SPECTR Series 2

5 books

SPECTR Series 3

6 books

Spectral City

3 books

Spectral Files

5 books

Spectre

3 books

Spectre War

3 books

Speed

2 books

Speed Demons MC Virginia

2 books

Speed of Sound Thrillers

2 books

Speedrunning the Multiverse Series

4 books

Speedverse

3 books

Speer und Bogner

10 books

Spell Birth

1 book

Spell Bound and Down

1 book

Spell Library

8 books

Spell Weaver

6 books

Spell's Angels

2 books

Spellbinder

1 book

Spellbinder Bay Cozy Paranormal Mystery

3 books

Spellbinder Quartet

4 books

Spellbinders

3 books

SpellBlade

2 books

Spellbound

4 books

Spellbound Ever After

3 books

Spellbound Falls

7 books

Spellbound Hearts

4 books

Spellbound Hound Magic and Mystery

11 books

Spellbound Murder

3 books

Spellbound Paranormal Cozy Mystery

3 books

Spellbound Ponies

6 books

Spellbound Prodigies

2 books

Spellbound Security

8 books

Spellbound Shifters

2 books

Spellbound Universe

1 book

Spellbreaker

2 books

Spellbreaker Climbs the Tower

1 book

Spellcaster

7 books

Spellcaster Academy

3 books

Spellcaster Ted

1 book

Spellcasters

4 books

Spellcasters Spy Academy

4 books

Spellcrafter

1 book

Spellfletcher

1 book

Spellford Cove Mystery

8 books

Spellheart Series

10 books

Spelling Competition with Prime Minister

1 book

Spelling for Kids

8 books

Spelling for Kids, Parents and Just for Fun 3 and 4-Letter Words

4 books

Spelling Love

1 book

SPELLING SIGHT WORDS FOR SECOND GRADERS

3 books

Spellman & Stantz: Paranormal Outreach and Rehabilitation

2 books

Spellman Mysteries (abridged)

2 books

Spellmonger

25 books

Spellmonger Cadet Series

3 books

Spellmonger: Legacy and Secrets

3 books

Spells

3 books

Spells & Caramels

12 books

Spells & Spatulas

3 books

Spells & Sundry

1 book

Spells & Wishes

7 books

Spells of Life and Death

2 books

Spells We Cast

2 books

Spells, Salt, & Steel

1 book

Spells, Salt, & Steel, Season Two

1 book

Spells, Swords, & Stealth

5 books

Spells, Swords, and the Wicked Prince

3 books