Series
|
Author
|
Publication range
|
# of books in series
|
The Secrets of Droon
|
Tony Abbott
|
1999–2010
|
44
|
Danny Dunn
|
Raymond Abrashkin and Jay Williams
|
1956–1977
|
15
|
Happy Families
|
Allan Ahlberg
|
1980–
|
21
|
The Chronicles of Prydain
|
Lloyd Alexander
|
1964–1968
|
5
|
Aldo Zelnick[1]
|
Karla Oceanak
|
2009–2018
|
A to Z; up to M so far
|
Animorphs
|
K. A. Applegate
|
1996–2001
|
54 + 10 spinoffs
|
The Three Investigators
|
Robert Arthur, Jr. and others
|
1964–1987
|
43 + 17 spinoffs
|
Motor Boat Boys
|
Louis Arundel
|
1912–1915
|
7
|
Crispin
|
Avi
|
2003–2010
|
3
|
The Railway Series
|
Wilbert Awdry
|
1945–1972
|
26
|
Christopher Awdry
|
1983–2011
|
16
|
Fluffy Little Kitten
|
Robert Bassett
|
2007–2008
|
4
|
Beverly Gray
|
Clair Blank
|
1934–1955
|
26
|
The Berenstain Bears
|
Stan and Jan Berenstain
|
1962–present
|
428
|
Arthur
|
Luc Besson
|
2002–2005
|
4
|
Sam Hawkins, Pirate Detective
|
Ian Billings
|
2003–2004
|
|
The Travels of Wiglington and Wenks
|
John Bittleston and Eliza Quek
|
1987
|
4
|
The Famous Five
|
Enid Blyton
|
1942–1963
|
21
|
The Secret Seven
|
Enid Blyton
|
1949–1963
|
17 + 7 short spinoffs
|
Paddington Bear
|
Michael Bond
|
1958–2018
|
30 + 5 special publications
|
Dave Dawson series
|
R. Sidney Bowen
|
1941–1946
|
|
Red Randall series
|
R. Sidney Bowen
|
1944–1946
|
8
|
The Last Kids on Earth
|
Max Brallier
|
2015–present
|
9 + 5 spinoffs
|
Clifford the Big Red Dog
|
Norman Bridwell
|
1963–2015
|
80
|
Arthur
|
Marc Brown
|
1976–2011
|
46
|
Lola Levine
|
Monica Brown
|
2015–2017
|
6
|
Sarai
|
Monica Brown
|
2018–present
|
4
|
Babar the Elephant series
|
Jean de Brunhoff and Laurent de Brunhoff
|
1931–present
|
44
|
School Friends
|
Ann Bryant
|
2008–2009
|
12
|
Jennings
|
Anthony Buckeridge
|
1950–1994
|
24
|
Catfish Bend
|
Ben Lucien Burman
|
1952–1984
|
7
|
Molly Moon
|
Georgia Byng
|
2002–2012
|
9
|
Alice
|
Lewis Carroll
|
1865–1871
|
2
|
Three Thieves
|
Scott Chantler
|
2008–2016
|
7
|
Henry Huggins
|
Beverly Cleary
|
1950–1963
|
6
|
Ramona
|
Beverly Cleary
|
1955–1999
|
8
|
The Magic School Bus
|
Joanna Cole
|
1986–2010
|
13 + 85 spinoffs and extras
|
The Land of Stories
|
Chris Colfer
|
2012–present
|
10
|
Little Bill
|
Bill Cosby
|
1997–1999
|
12
|
How to Train Your Dragon
|
Cressida Cowell
|
2003–2015
|
12
|
The Demon Headmaster
|
Gillian Cross
|
1982–2019
|
8
|
The Animals of Farthing Wood
|
Colin Dann
|
1979–1994
|
8
|
Dauntless series
|
James Kerr (as "Peter Dawlish")
|
1947–1960
|
8
|
Alex Archer series
|
Tessa Duder
|
1987–1993
|
|
Tom Swift
|
Victor Appleton
|
1910–1941
|
|
William Dougherty, John Almquist, Richard Sklar, James Duncan Lawrence, Thomas Mulvey and Richard McKenna
|
1954–1971
|
|
Bill Rotsler, Sharmon Divono, Neal Barrett, Jr. and Robert E. Vardeman
|
1981–1984
|
|
Bill McCay, Steven Grant, F. Gwynplaine MacIntrye, Debra Doyle, James D. Macdonald, Robert E. Vardeman, Bruce Holland Rogers, Bridget McKenna
|
1991–1993
|
|
Tom Swift Young Inventor
|
Victor Appleton
|
2006–2007
|
6
|
Firland
|
Norman Sandiford Power
|
1970–1974
|
3
|
Matthew Livingston
|
Marco Conelli
|
2007–
|
|
The Indian in the Cupboard
|
Lynne Reid Banks
|
1980–1998
|
5
|
Outernet
|
Steve Barlow and Steve Skidmore
|
2002–2003
|
6
|
Peter and the Starcatchers
|
Dave Barry and Ridley Pearson
|
2004–2011
|
5
|
Oz series
|
L. Frank Baum, Ruth Plumly Thompson, and others
|
1900–1920 (Baum); 1921–1963 (others)
|
14
|
Madeline
|
Ludwig Bemelmans
|
1939–1956
|
6
|
John Bemelmans Marciano
|
1999–2013
|
6
|
The Dark Is Rising Sequence
|
Susan Cooper
|
1965–1977
|
5
|
Geronimo Stilton
|
Elisabetta Dami
|
2000–present
|
84 + 35 spinoffs
|
Amber Brown
|
Paula Danziger
|
1994–2003
|
|
Bruce Coville and Elizabeth Levy
|
2012–present
|
|
The Hardy Boys
|
Franklin W. Dixon
|
1927–2005
|
58
|
The Clues Brothers
|
Franklin W. Dixon
|
1997–2000
|
17
|
The Hardy Boys: Undercover Brothers
|
Franklin W. Dixon
|
2005–2012
|
40
|
The Hardy Boys Adventures
|
Franklin W. Dixon
|
2013–2023
|
23
|
The Familiars
|
Adam Jay Epstein and Andrew Jacobson
|
2010–2013
|
4
|
The Black Stallion
|
Walter Farley and Steven Farley
|
1941–1989
|
21
|
Père Castor
|
Paul Faucher
|
1933–present
|
|
The Great Brain
|
John D. Fitzgerald
|
1967–1995
|
8
|
The Vanderbeekers
|
Karina Yan Glaser
|
2017–2023
|
7
|
Just!
|
Andy Griffiths
|
1997–2012
|
9
|
Raggedy Ann
|
Johnny Gruelle
|
1918–present
|
63
|
Mr. Men
|
Roger Hargreaves
|
1971–1988
|
6
|
Adam Hargreaves
|
1988–present
|
|
Little Miss
|
Roger Hargreaves
|
1981–1988
|
13
|
Adam Hargreaves
|
1988–present
|
|
Timbuctoo
|
Roger Hargreaves
|
1978–1979
|
25
|
Beaver Towers
|
Nigel Hinton
|
1980–1997
|
4
|
Angelina Ballerina
|
Katharine Holabird
|
1983–2021
|
60
|
Mona the Vampire
|
Sonia Holleyman
|
1990–
|
7
|
Bobbsey Twins
|
Laura Lee Hope
|
1904–1979
|
72
|
Bunnicula
|
Deborah Howe and James Howe
|
1979–2006
|
7
|
Oxford Reading Tree
|
Roderick Hunt and others
|
1985–present
|
800+
|
Sugar Creek Gang
|
Paul Hutchens
|
1940–1970
|
36
|
Redwall
|
Brian Jacques
|
1986–2011
|
22 + 2 picture books
|
Biggles
|
W. E. Johns
|
1932–1999
|
98 + 4 extras
|
The Adventures of the Bailey School Kids
|
Marcia T. Jones and Debbie Dadey
|
1990–2006
|
51 + 33 spinoffs
|
Chrestomanci
|
Diana Wynne Jones
|
1977–2006
|
7
|
The Guardians of Childhood
|
William Joyce
|
2011–2018
|
5
|
Nancy Drew Mystery Stories
|
Carolyn Keene
|
1930–2003
|
175
|
Nancy Drew Diaries
|
Carolyn Keene
|
2013–present
|
25
|
Nancy Drew: Girl Detective
|
Carolyn Keene
|
2004–2012
|
51
|
The Nancy Drew Files
|
Carolyn Keene
|
1986–1997
|
124
|
Diary of a Wimpy Kid
|
Jeff Kinney
|
2007–present
|
19
|
Cahills vs. Vespers
|
Gordon Korman, Jude Watson, Peter Lerangis, Roland Smith, Linda Sue Park and David Baldacci
|
2011–2013
|
7
|
Pelle No-Tail
|
Gösta Knutsson
|
1939–1972
|
12
|
Mandie
|
Lois Gladys Leppard
|
1983–2004
|
44
|
The Chronicles of Narnia
|
C.S. Lewis
|
1950–1956
|
7
|
The Squickerwonkers
|
Evangeline Lilly
|
2013–present
|
4
|
Pippi Longstocking
|
Astrid Lindgren
|
1945–1948
|
16
|
Sítio do Picapau Amarelo
|
Monteiro Lobato
|
1920–1940
|
23
|
Doctor Dolittle
|
Hugh Lofting
|
1920–1952
|
15
|
Superspecial
|
C. Alexander London
|
2016
|
1
|
Betsy-Tacy
|
Maud Hart Lovelace
|
1940–1955
|
10
|
The Deep Valley series
|
Maud Hart Lovelace
|
1949–1953
|
3
|
Tales of the Kingdom Trilogy
|
David and Karen Mains
|
1983–1996
|
3
|
The Lost Planet
|
Angus MacVicar
|
1953–1964
|
8
|
The Baby-Sitters Club
|
Ann M. Martin
|
1986–1999
|
146
|
The Baby-Sitters Club: Mysteries
|
Ann M. Martin
|
1991–1998
|
40
|
The Baby-Sitters Club: Friends Forever
|
Ann M. Martin
|
1999–2000
|
14
|
Winnie-the-Pooh
|
A.A. Milne
|
1924–1928
|
2
|
David Benedictus
|
2009
|
2
|
Anne Shirley series
|
Lucy Maud Montgomery
|
1908–1921
|
8
|
What-a-Mess
|
Frank Muir
|
|
23
|
The Worst Witch
|
Jill Murphy
|
1974–2018
|
8
|
Mrs. Coverlet trilogy
|
Mary Nash
|
1961–1965
|
3
|
Psammead Trilogy
|
E. Nesbit
|
1902–1906
|
3
|
The Borrowers
|
Mary Norton
|
1952–1982
|
5
|
Rats of NIMH
|
Robert C. O'Brien
|
1972
|
3
|
Jane Leslie Conly
|
1986–1990
|
Fancy Nancy
|
Jane O'Connor
|
2005–2013
|
80
|
The Magic Tree House
|
Mary Pope Osborne
|
1992–present
|
67
|
Abbey Series
|
Elsie J. Oxenham
|
1920–1967
|
38
|
Vampirina Ballerina
|
Anne Marie Pace
|
2012–2015
|
4
|
Junie B. Jones
|
Barbara Park
|
1992–2012
|
28 + 3 extras
|
Captain Underpants
|
Dav Pilkey
|
1997–2015
|
12 + 17 spinoffs and extras
|
Peter Rabbit
|
Beatrix Potter
|
1902–2012
|
6
|
The Nome Trilogy
|
Terry Pratchett
|
1989–1990
|
3
|
Swallows and Amazons series
|
Arthur Ransome
|
1930–1988
|
12
|
The Adventures of Tintin
|
Georges Prosper Remi (as Hergé)
|
1929–1976
|
24
|
Curious George
|
H.A. Rey and Margaret Rey
|
1941–1966
|
|
Percy Jackson & the Olympians
|
Rick Riordan
|
2005–2009
|
6
|
The Heroes of Olympus
|
Rick Riordan
|
2010–2014
|
5
|
The Kane Chronicles
|
Rick Riordan
|
2010–2012
|
3
|
Magnus Chase and the Gods of Asgard
|
Rick Riordan
|
2015–present
|
3
|
The Trials of Apollo
|
Rick Riordan
|
2016
|
5
|
The Clue Hunt
|
Rick Riordan, Gordon Korman, Peter Lerangis, Jude Watson, Patrick Carman, Linda Sue Park and Margaret Peterson Haddix
|
2008–2011
|
11
|
Harry Potter
|
J.K. Rowling
|
1997–2007
|
7
|
The Winner's trilogy
|
Marie Rutkoski
|
2014–2016
|
3
|
Wayside School
|
Louis Sachar
|
1978–2020
|
4
|
The Little Ghost Godfrey
|
Inger and Lasse Sandberg
|
1965–2005
|
14
|
Busytown
|
Richard Scarry
|
1994–2000
|
|
I'm a Happy Hugglewug
|
Niamh Sharkey
|
2005–2011
|
|
The Rescuers
|
Margery Sharp
|
1959–1978
|
9
|
Horrid Henry
|
Francesca Simon
|
1994–present
|
24
|
Oddies
|
Grant Slater
|
2000s
|
|
A Series of Unfortunate Events
|
Lemony Snicket
|
1999–2006
|
13
|
Encyclopedia Brown
|
Donald J. Sobol
|
1963–2012
|
29
|
Goosebumps
|
R. L. Stine
|
1992–1997
|
62
|
Tales to Give You Goosebumps
|
R. L. Stine
|
1994–1997
|
6
|
Give Yourself Goosebumps
|
R. L. Stine
|
1995–2000
|
50
|
Goosebumps Presents
|
R. L. Stine
|
1996–1998
|
19
|
Goosebumps Autobiographies
|
R. L. Stine
|
1997–1998
|
2
|
Goosebumps Triple Header
|
R. L. Stine
|
1997–1998
|
2
|
Goosebumps Series 2000
|
R. L. Stine
|
1998–2000
|
27
|
Goosebumps HorrorLand
|
R. L. Stine
|
2008–2012
|
25 + 2 extras
|
Goosebumps Most Wanted
|
R. L. Stine
|
2012–present
|
14
|
Judy Bolton Mystery Stories[2]
|
Margaret Sutton
|
1932–2012
|
40
|
The Happy Hollisters
|
Andrew E. Svenson
|
1953–1969
|
38
|
Anatole
|
Eve Titus
|
1956–1979
|
10
|
Basil of Baker Street
|
Eve Titus
|
1958–1982
|
8
|
Cathy Hapka
|
2018–2020
|
Mary Poppins
|
P. L. Travers
|
1934–1988
|
8
|
Bannerdale series
|
Geoffrey Trease
|
1949–1956
|
5
|
Blinky Bill
|
Dorothy Wall
|
1933–1934
|
3
|
The Boxcar Children
|
Gertrude Chandler Warner
|
1924–present
|
162
|
Unstoppable
|
Jude Watson, Jeff Hirsch, Natalie Standiford and Gordon Korman
|
2013–2014
|
4
|
Doublecross
|
Jude Watson, C. Alexander London, Jenny Goebel and Sarwat Chadda
|
2015–present
|
4
|
Monty the Dog
|
Colin West
|
1989–1996
|
6
|
Little House on the Prairie
|
Laura Ingalls Wilder
|
1932–1971
|
9 + 1 nonfiction extra
|
Dr. Dee Dee Dynamo
|
Oneeka Williams
|
2013–2018
|
5
|
Hank Zipzer
|
Henry Winkler and Lin Oliver
|
2003–2010
|
18
|
Mercer Boys
|
Albert Capwell Wyckoff
|
1929–1933
|
10
|
Mystery Hunters
|
Albert Capwell Wyckoff
|
1934–1936
|
4
|
Secret Coders
|
Gene Luen Yang
|
2015–2018
|
6
|