I have trouble writing the first sentence..
Very easy. What's difficult is writing a good book.
Writing isn't that difficult if you really know your subject matter. Writing in a manner and style that captivates others, causing them to want to read what you write is the key. We all have an interesting story to tell, but few can put it to paper in a way to attract readers.
Easy to write. Difficult to get published.
Yes. Write gibberish and tell other people it's art.
That's what I've done.
Writing a book is easy. Writing a book worth reading is another matter.
Not a good one.
It's easy to write a book, it's difficult to make it liked by people