i think eight years
It took her 17 years to write the entire series.
J.K.Rowling is working on the Harry Potter Encyclopaedia however do not expect it to be released for a long time as it will take a long time to write.
J.K. Rowling took about one year to write Harry Potter and the Chamber of Secrets. She started working on it immediately after finishing Harry Potter and the Philosopher's Stone.
J.K. Rowling wrote and edited the first book between 1990 and 1997 when it was first published. She spent countless hours working on it.
It takes time to write books and make movies.
The seventh book was published about 10 years after the first book, so for each of books 2-7, the author took about one and a half years on average.
5 years
Ron Weasley is one of the main characters in the series, not the author. The books were written by J.K. Rowling. The first book was written between 1990 and 1995 and was then published in 1997.
The Old Testament consists of a lot of books, probably written by different people over a long period. General opinion is that its writing was spread over 1000 years from the 12th Century BC to the 2nd Century BC.
Well, he has to figure out how the plot is going to unfold, and then he has to write it. After that, the books has to go through a long process of illustration, editing, and publishing. It usually takes a year for this whole process to take place for him. Not to mention, he can't just sit and write all day.
J.K. Rowling appeared in an interview, announcing that Albus was indeed. However, there are no indications of it in the books or the movies, not at all. Rowling most likely added the idea for commercial reasons. It does not add to or take away from Dumbledore's character.
The prophets wrote their books, from the time of Moses (Deuteronomy 31: 24) down to the time of Ezra, one thousand years.