Joy of Life had been published. According to the information in document (1), document (2), document (3), document (4), and document (6), the novel was published after the book was completed. Originally, it was planned to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it could be confirmed that Joy of Life had been published.

Joy of Life had already been published. According to the contents of document [1], document [2], document [3], document [4], and document [5], the novel had been published after the book was completed. Originally, it was planned to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it was certain that Joy of Life had already been published.
Joy of Life had been published. According to the document provided, the novel had been published after the book was completed. Originally, it was planned to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it could be confirmed that Joy of Life had already been published.
Joy of Life had already been published. According to the information from multiple documents, the novel had been published after the book was completed. Originally, it was planned to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it was certain that Joy of Life had already been published.
Joy of Life was published.
Joy of Life had already published six volumes. According to the documents provided, the original plan was to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, Joy of Life had been published.
Joy of Life had been published. According to the documents provided, the original plan was to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it could be confirmed that Joy of Life had already been published.
The novel, Celebrating Years, had already been published. According to the document provided, the novel had been published after the book was completed. Originally, it was planned to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it could be confirmed that 'Celebrating Years' had already been published.
Joy of Life had already been published. According to the information in document [1], document [2], document [3], document [4], and document [6], the novel had been published after the book was completed. Originally, it was planned to publish seven volumes, but due to the closure of the publishing house, only six volumes were actually published. Therefore, it was certain that Joy of Life had already been published.
Joy of Life did have a paper book. According to the search results, Joy of Life's print novel was published by the People's Literature Press, which included the first and second volumes. However, due to some inconsistent information in the search results, it was impossible to determine the exact number of Joy of Life printed books. Therefore, the exact number of printed copies of Joy of Life could not be determined.
Joy of Life did have a paper book. The number of Joy of Life books mentioned in document 1 and document 2 were 15-16 and 5 respectively. In addition, document 5 mentioned that the People's Literature Press published a paper version of Joy of Life, which included the first and second volumes. However, due to some inconsistent information in the search results, it was impossible to determine the exact number of Joy of Life printed books.