| 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– |
20 |
| The Chronicles of Prydain |
Lloyd Alexander |
1964–1968 |
5 |
| Vesper Holly |
Lloyd Alexander |
1986–2005 |
6 |
| Westmark |
Lloyd Alexander |
1981–1984 |
3 |
| Aldo Zelnick |
Karla Oceanak |
2009–2018 |
A to Z; up to M so far |
| Animorphs[1] |
K. A. Applegate |
1996–2001 |
54 + 10 spinoffs |
| The Lighthouse Keeper series |
Ronda Armitage |
1977–2020 |
12 |
| 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 |
| Keeper of the Lost Cities |
Shannon Messenger |
2012-2024 |
11 |
| Johnny Dixon |
John Bellairs, Brad Strickland |
1983–2022 |
13 |
| Lewis Barnavelt |
John Bellairs, Brad Strickland |
1973–2008 |
12 |
| The Berenstain Bears |
Stan and Jan Berenstain |
1962–present |
400+ |
| Arthur |
Luc Besson |
2002–2005 |
4 |
| Sam Hawkins, Pirate Detective |
Ian Billings |
2003–2004 |
2 |
| Gumdrop |
Val Biro |
1966–2001 |
37 |
| The Travels of Wiglington and Wenks |
John Bittleston and Eliza Quek |
1987 |
4 |
| Beverly Gray |
Clair Blank |
1934–1955 |
26 |
| 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 |
| Kofiko and Chipopo |
Tamar Bornstein-Lazar |
1957–present |
|
| 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 |
10 + 5 spinoffs |
| Chalet School |
Elinor M. Brent-Dyer |
1925–1970 |
58 |
| Clifford the Big Red Dog |
Norman Bridwell |
1963–2015 |
80 |
| Milly-Molly-Mandy |
Joyce Lankester Brisley |
1928–1967 |
6 |
| 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 Mabel |
Jilly Cooper |
1980–1985 |
4 |
| Little Bill |
Bill Cosby |
1997–1999 |
12 |
| How to Train Your Dragon |
Cressida Cowell |
2003–2015 |
12 |
| Just William |
Richard Crompton |
1922–1970 |
38 |
| 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 |
| The Bagthorpe Saga |
Helen Cresswell |
1977–2001 |
10 |
| Lizzie Dripping |
Helen Cresswell |
1973–1994 |
5 |
| Posy Bates |
Helen Cresswell |
1992–1994 |
3 |
| Two Hoots series |
Helen Cresswell |
1974–1977 |
7 |
| Winklesea series |
Helen Cresswell |
1971–1995 |
3 |
| Geronimo Stilton |
Elisabetta Dami |
1997–present |
85 + 40 spinoffs |
| Amber Brown |
Paula Danziger |
1994–2003 |
|
| Bruce Coville and Elizabeth Levy |
2012–present |
|
| The Spiderwick Chronicles |
Tony DiTerlizzi and Holly Black |
2003–2009 |
8 |
| 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 |
| Jim Button (Jim Knopf) series |
Michael Ende |
1960–1962 |
2 |
| The Familiars |
Adam Jay Epstein and Andrew Jacobson |
2010–2013 |
4 |
| Hank the Cowdog |
John R. Erickson |
1983-current |
82 |
| 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 |
| Dragon Rider |
Cornelia Funke |
1997–2021 |
3 |
| Ghosthunters |
Cornelia Funke |
1993–2001 |
4 |
| Inkheart series |
Cornelia Funke |
2003–2024 |
4 |
| MirrorWorld |
Cornelia Funke |
2010–present |
5 |
| Grandpa Chatterji |
Jamila Gavin |
1993–2006 |
3 |
| Kamla and Kate duology |
Jamila Gavin |
1983–1991 |
2 |
| Surya trilogy |
Jamila Gavin |
1992–1997 |
3 |
| 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 |
12 |
| 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 |
| The Book of Silence |
William Horwood |
1991–1993 |
3 |
| The Duncton Chronicles |
William Horwood |
1980–1989 |
3 |
| Tales of the Willows |
William Horwood |
1993–1999 |
4 |
| 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 |
| Kipper the Dog |
Mick Inkpen |
1991–2016 |
47 |
| 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[2] |
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 |
| Mog |
Judith Kerr |
1970–2019 |
20 |
| Witch Mountain |
Alexander Key |
1968–1978 |
2 |
| Horrible Harry |
Suzy Kline |
1988–2019 |
37 |
| Diary of a Wimpy Kid |
Jeff Kinney[3] |
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 |
| The Wolf in Underpants |
Wilfrid Lupano [fr] (illustrators: Mayana Itoïz [fr] and Paul Cauuet [fr]) |
2016- |
8 |
| Tales of the Kingdom Trilogy |
David and Karen Mains |
1983–1996 |
3 |
| The Lost Planet |
Angus MacVicar |
1953–1964 |
8 |
| Merry series |
Clare Mallory |
1947 |
3 |
| 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 |
| Not Quite Human |
Seth McEvoy |
1985–1986 |
6 |
| Preston Pig |
Colin McNaughton |
1994–2011 |
6 |
| 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 |
| Doctor Proctor's Fart Powder |
Jo Nesbø |
2010–2018 |
5 |
| Meg and Mog |
Helen Nicoll (illustrator: Jan Pieńkowski) |
1972–2018 |
21 |
| 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 |
| Riverdale Stories |
Oliver Optic |
1862 |
12 |
| The Magic Tree House |
Mary Pope Osborne |
1992–present |
68 |
| Abbey Series |
Elsie J. Oxenham |
1920–1967 |
38 |
| Vampirina Ballerina |
Anne Marie Pace |
2012–2015 |
4 |
| Choose Your Own Adventure |
Edward Packard and others |
1979–1998 (original series) |
184 (original series) |
| Junie B. Jones |
Barbara Park |
1992–2012 |
28 + 3 extras |
| Foxwood Tales |
Cynthia Patterson (illustrator: Brian Paterson) |
1985–1998 |
8 |
| Captain Underpants |
Dav Pilkey |
1997–2015 |
12 + 17 spinoffs and extras |
| Dog Man |
Dav Pilkey |
2016- |
14 + 11+ spinoffs and extras |
| Dumb Bunnies |
Dav Pilkey |
1994-1997 |
4 |
| Ricky Ricotta's Mighty Robot |
Dav Pilkey |
2000-2016 |
10 |
| Pollyanna |
Eleanor H. Porter, Harriet Lummis Smith, Elizabeth Borton, Virginia May Moffitt and Colleen L. Reece |
1913–1997 |
16 |
| Peter Rabbit |
Beatrix Potter |
1902–2012 |
6 |
| The Nome Trilogy |
Terry Pratchett[4] |
1989–1990 |
3 |
| The Robber Hotzenplotz |
Otfried Preußler |
1962–1973 |
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 |
7 +61 spinoffs and extras |
| Creepy Carrots! |
Aaron Reynolds (illustrator: Peter Brown) |
2012–present |
3 |
| Jacob Two-Two |
Mordecai Richler, Cary Fagan |
1975–2009 |
3 |
| Percy Jackson & the Olympians |
Rick Riordan[5] |
2005–2009 |
6 |
| The Heroes of Olympus |
Rick Riordan[6] |
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 |
| Freaky Friday |
Mary Rodgers, Heather Hach |
1972–2009 |
4 |
| Attack of the Underwear Dragon |
Scott Rothman (illustrator: Pete Oswald) |
2020-2021 |
2 |
| 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 |
| Dick and Jane |
Zerna Sharp |
1930– |
|
| Five Little Peppers |
Margaret Sidney |
1881–1916 |
12 |
| Horrid Henry |
Francesca Simon |
1994–present |
24 |
| Oddies |
Grant Slater |
2000s |
|
| A Series of Unfortunate Events |
Lemony Snicket[7] |
1999–2006 |
13 |
| Encyclopedia Brown |
Donald J. Sobol |
1963–2012 |
29 |
| Goosebumps[8] |
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[9] |
Margaret Sutton |
1932–2012 |
40 |
| Cartoon Kid |
Jeremy Strong |
2011–2013 |
5 |
| The Hundred-Mile-An-Hour Dog |
Jeremy Strong |
1996–2016 |
8 |
| My Brother's Famous Bottom |
Jeremy Strong |
2007–2017 |
9 |
| Pirate School |
Jeremy Strong |
2002–2007 |
5 |
| The Happy Hollisters |
Andrew E. Svenson |
1953–1969 |
38 |
| All-of-a-Kind Family |
Sydney Taylor |
1951-1978 |
5 |
| Winnie the Witch |
Valerie Thomas (illustrator: Korky Paul) |
1987–2024 |
27 |
| 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 |
| Impossible series |
Marina Warner |
1981–1982 |
4 |
| 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 |
| Galaxy of Fear |
John Whitman |
1997–1998 |
12 |
| 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 |
| The 5th Wave |
Rick Yancey |
2013–2016 |
3 |
| Secret Coders |
Gene Luen Yang |
2015–2018 |
6 |