You do not need a degree to write a best seller, a degree may help your chances at being a recognized author and writer but many times best sellers come from people who do not have a degree in journalism or artistic writing. It is not necessary
The past tense is wrote; the future tense is will write.
'How to...' books.
No you don't need a degree to write books. Getting your book published is an entirely another matter.
Anyone can write a book. You just need to come up with a great idea/topic and keep writing!
YES she loved writing book and singing
NO. If you just want to write the book, go ahead and let 'er rip. If you're thinking of selling the book and making a kajillion bucks, please take a number and wait in line (I was here first). But you don't need a degree, and with a good editor, you probably don't even need English classes and a good book with proper spelling and grammar. Write because you love to write. It ain't an easy way to make a living.
No she is not writing a book about james potter but she did write an 800 word short story on him
You underline it if you are hand writing and italicize if you are typing.
both
If you agree to write a book without putting your name on it and someone else takes the credit, that is ghost writing.
They were probably interviewed or asked to answer questions on paper in the writing of their book(s).
If one can write well, then yes, writing is a lucrative career choice.