J.K. Rowling, the author of the beloved Harry Potter series, has had a fascinating journey in the literary world.

Her early beginnings as a struggling single mother on welfare in England served as inspiration for her debut novel, "Harry Potter and the Philosopher's Stone." 

The idea for the story came to her on a train ride in 1995, and she spent the next five years developing the characters and plot.

When she finally finished the manuscript, Rowling faced rejection from multiple publishers before finally landing a deal with Bloomsbury, a small UK publisher.

 The book was released in 1997 and quickly became a bestseller, leading to the publication of six more Harry Potter books.

 Rowling's marketing strategy for the series was unique, as she slowly released information about the upcoming books to keep fans engaged and build anticipation. 

 The books were also adapted into a successful film series, which further increased their popularity. The impact of the Harry Potter series on popular culture and literature cannot be overstated.

 The books have sold over 500 million copies worldwide and have been translated into over 80 languages. They have also been adapted into films, video games, and stage plays.

 J.K. Rowling currently lives in Scotland and continues to write. She has published several books under the pseudonym Robert Galbraith, including the "Cormoran Strike" series.

 In summary, J.K. Rowling, the creator of Harry Potter, had humble beginnings, a stroke of inspiration and a development of 5 years with a publishing journey that was filled with rejection before she finally landed with Bloomsbury. 

With her unique marketing strategy, adaptation and impact on popular culture and literature, she continues to write and work on new projects