How to write a book

Books gives the best knowledge in the world. to know about anything we read or refer books. Is it necessary to, have some knowledge to write a book? Yes. but some people find it easy to write a book. But for me, it was very difficult to write a blog. When i thought about writing something in a blog.i thought it is easy. but when i sat and writing something in a blog.i found that very difficult. after that i started referring some blog threw Google search. and i read books,after that i started writing. "it takes so much time to write a book" this is what people say. But the truth is, we can write more than 100 books in a year. it is just matter of time and knowledge you have it with you. My personal opinion about writing a book is, start write a diary daily which gives you the best experience of being an author. then take your time and after 3 months read your own diary as a reader not an author. so you find some mistakes. avoid it. then start writing your own book. but remember that, writing a book is an Art. don't write a book. that i have to write."Read 100 percentage, only 10 percentage you can reproduce as a book."