50 books in series

Spenser

Spenser is a 52-book series with 50 released primary works first released in 1974 with contributions by Robert B. Parker, Michael Prichard, Stefan Rudnicki, David Dukes, Ace Atkins, Helen Brann, and Mike Lupica.

God Save The Child
Mortal Stakes
Promised Land
The Judas Goat
Looking For Rachel Wallace
Early Autumn
A Savage Place
Ceremony
The Widening Gyre
Valediction
A Catskill Eagle
Taming A Sea-Horse
Pale Kings And Princes
Crimson Joy
Playmates
Stardust
Pastime
Double Deuce
Paper Doll
Walking Shadow
Thin Air
Chance
Small Vices
Sudden Mischief
Hush Money
Hugger Mugger
Potshot
Widow's Walk
Back Story
Bad Business
Cold Service
School Days
Hundred-Dollar Baby
Now & Then
Rough Weather
Chasing The Bear
The Professional
Painted Ladies
Sixkill
Robert B. Parker's Lullaby
Robert B. Parker's Wonderland
Silent Night
Robert B. Parker's Cheap Shot
Robert B. Parker's Kickback
Robert B. Parker's Slow Burn
Robert B. Parker's Little White Lies
Robert B. Parker's Old Black Magic
Robert B. Parker's Angel Eyes
Robert B. Parker's Someone to Watch Over Me
Robert B. Parker's Bye Bye Baby
Robert B. Parker's Broken Trust
Robert B. Parker's Hot Property