How many books are there in total to celebrate the year?

Joy of Life had a total of 15 volumes.

There were a total of 15 volumes in the celebration.

According to the information provided, there was some inconsistent information regarding the number of books in Joy of Life. According to documents [2] and [3], Joy of Life had seven volumes. However, other documents mentioned different numbers. For example, document [1] mentioned a total of 15 volumes, document [4] mentioned a total of 12 volumes, and document [5] mentioned that the total was estimated to not exceed 15 volumes. Due to the existence of inconsistent information, it was impossible to determine the exact answer. Therefore, I don't know the exact answer to the question of how many books there are in Joy of Life.

There was inconsistent information regarding the number of books in Joy of Life. Some mentioned a total of 5, 6, 7, 12, 15, or 16 volumes, while others mentioned a total of 7, 12, or 15 volumes. However, according to the content of document [3], there are seven books in Joy of Life. Therefore, Joy of Life had a total of seven books.

There was some inconsistent information regarding how many books there were in Joy of Life. According to documents [2] and [3], Joy of Life had seven volumes. However, other documents mentioned different numbers. For example, document [1] mentioned a total of 15 volumes, document [4] mentioned a total of 12 volumes, and document [5] mentioned that the total was estimated to not exceed 15 volumes. Due to the existence of inconsistent information, it was impossible to determine the exact answer. Therefore, I don't know the exact answer to the question of how many books there are in Joy of Life.

There was some inconsistent information regarding how many books there were in Joy of Life. Some mentioned a total of 7 volumes, some mentioned a total of 12 volumes, and some mentioned a total of 15 volumes. However, based on the contents of documents [2],[5],[6], and [7], it can be concluded that there are a total of 15 books in Joy of Life.

There was some inconsistent information regarding how many books there were in Joy of Life. Some documents mentioned that there were 12 volumes in total, while others mentioned that there were 15 volumes. Among them, the People's Literature Press published the first five volumes of the revised edition. The Taiwan edition was divided into three volumes and a total of 12 volumes. However, it was not clear whether the second half of the book was published or whether there was a final version. Therefore, he could not give a definite answer.

There was some inconsistent information regarding how many books there were in Joy of Life. According to documents [2] and [3], Joy of Life had seven volumes. However, other documents mentioned different numbers. For example, document [1] mentioned a total of 15 volumes, document [4] mentioned a total of 12 volumes, and document [5] mentioned that the total was estimated to not exceed 15 volumes. Therefore, based on the information provided, it was impossible to determine how many copies of Joy of Life there were.

There were some uncertainties and contradictions regarding the number of books in Joy of Life. Some documents mentioned that there were a total of 15 volumes, including the first five volumes of the revised edition, the three volumes of the Taiwan edition, and the complete collection, which included volumes 1-14. However, other documents mentioned that only six volumes of Joy of Life were actually published, and the last volume was not published. Therefore, it was impossible to determine the exact number of copies.

There was some inconsistent information regarding the number of volumes of the novel "Celebrating Years". Literature [1],[2],[3],[4],[5],[6],[7],[8],[9] mentioned different numbers, such as 7 volumes, 15 volumes, 12 volumes, etc. Due to the inconsistent information, it was impossible to determine the exact number. Therefore, I don't know how many volumes there are in total.