Question: In how many volumes was this work by Louisa May Alcott published to which the Canadian television show Little Men was a follow-up?

Context articles: Little Women II: Jo's Boys
Little Men (1940 film)
Little Men
John Bridge Pratt
Little Men (TV series)
Little Women
Eden's Outcasts
Samuel Joseph May
Louisa May Alcott
Little Men (1934 film)

Little Women II: Jo's Boys, also known as Wakakusa Monogatari Nan to Jō Sensei (若草物語ナンとジョー先生 , "Tale of Young Grass: Nan and Miss Jo") is a 1993 Japanese animated television series based on Louisa May Alcott's "Little Men", produced by Nippon Animation.
 The title is taken from "Jo's Boys", the title of the sequel to "Little Men".
Little Men (1940) is an American film based on the novel "Little Men" (1871) by Louisa May Alcott.
 Norman Z. McLeod directed the film.
Little Men, or Life at Plumfield with Jo's Boys, is a novel by American author Louisa May Alcott, first published in 1871.
 The novel reprises characters from "Little Women" and is considered by some the second book in an unofficial "Little Women" trilogy, which is completed with Alcott's 1886 novel "Jo's Boys, and How They Turned Out: A Sequel to "Little Men"".
 It tells the story of Jo Bhaer and the children at Plumfield Estate School.
 It was inspired by the death of Alcott's brother-in-law, which reveals itself in one of the last chapters, when a beloved character from "Little Women" passes away.
 It has been adapted to a 1934 film, a 1940 film, a 1998 film, a television series, and a .
John Bridge Pratt (June 16, 1833 – November 27, 1870) was the husband of Anna Bronson Alcott Pratt, the elder sister of novelist Louisa May Alcott.
 He inspired the fictional character John Brooke in his sister-in-law Louisa May Alcott's best known novels.
Little Men is a Canadian television show that first aired on November 7, 1998 on the PAX TV network and was shown in Canada on CTV beginning January 1, 1999.
 The show is set as a continuation from the Louisa May Alcott novel "Little Men" (1871) as a follow-up to "Little Women".
 Due to low ratings, the show was cancelled after 2 seasons, with the final episode aired on December 17, 1999.
Little Women is a novel by American author Louisa May Alcott (1832–1888), which was originally published in two volumes in 1868 and 1869.
 Alcott wrote the books rapidly over several months at the request of her publisher.
Eden's Outcasts: The Story of Louisa May Alcott and Her Father is a 2007 biography by John Matteson of Louisa May Alcott, best known as the author of "Little Women", and her father, Amos Bronson Alcott, an American transcendentalist philosopher and the founder of the Fruitlands utopian community.
 "Eden's Outcasts" won the 2008 Pulitzer Prize for Biography.
Samuel Joseph May (September 12, 1797 – July 1, 1871) an American reformer during the nineteenth century, championed multiple reform movements including education, women’s rights, and abolitionism.
 May argued on behalf of all working people that the rights of humanity were more important than the rights of property and advocated for minimum wages and legal limitations on the amassing of wealth.
 He was born on September 12, 1797, in an upper class Boston area.
 May was the son of Colonel Joseph May, a merchant, and Dorothy Sewell, who was descended from or connected to many of the leading families of colonial Massachusetts, including the Quincys and the Hancocks.
 His sister was Abby May Alcott, mother of novelist Louisa May Alcott.
 In 1825, he married Lucretia Flagge Coffin with whom he had five children.
 Author Eve LaPlante, who wrote several books about his sister Abby May Alcott and a book about Sewall ancestor, Judge Samuel Sewall is one of his direct descendants.
Louisa May Alcott ( ; November 29, 1832March 6, 1888) was an American novelist and poet best known as the author of the novel "Little Women" (1868) and its sequels "Little Men" (1871) and "Jo's Boys" (1886).
 Raised by her transcendentalist parents, Abigail May and Amos Bronson Alcott in New England, she also grew up among many of the well-known intellectuals of the day such as Ralph Waldo Emerson, Nathaniel Hawthorne, and Henry David Thoreau.
Little Men is a 1934 American feature film based on Louisa May Alcott's 1871 novel "Little Men".
 It stars Ralph Morgan and Erin O'Brien-Moore, was directed by Phil Rosen, and released by Mascot Pictures.