Writing an entire novel or non fiction book may on the surface seem to be impossible. However, if you break up your tasks the right way, it is completely possible to finish a book quickly. The average full length book can range anywhere from 60,000 to 100,000 words. If you divide that number up into days, in order to finish the book in a month, you would only need to complete 2000 to 3500 words per day.
The key to quickly finishing any book is proper planning from the beginning and having a firm understanding of the subject matter. If necessary, complete any needed research ahead of time and make copies of what you will need to know for certain sections of your book. Many times, the researching phase takes longer than the actual writing of a book, especially if you are working on non fiction.
Create an outline for your book from start to finish, even if you are writing fiction. After you have completed your outline, write a treatment for your project. This treatment should be like a condensed version of the book you are going to write and can be from three to five pages long.
Once you have your outline and your treatment, you can fall back on these resources while you are writing. If you do get stuck in the story, returning to the outline you prepared can help you get back on track. Set aside time each day to focus on your writing and set a goal of how many words you want to write each day.
There may be days where 5000 words easily flow and there may be others where you simply cannot get any work done on your book. However, with dedication and firm goals, you can write a book in less than 30 days.