This is for 2017, I've had it copyrighted under my name. This will be for self published ebooks.
You don't need an EIN (employer identification number) unless you have employees or certain kinds of retirement plans. and a few other things. See https://www.irs.gov/businesses/small-businesses-self-employed/do-you-need-an-ein
You can get one by filling out an SS-4 online at irs.gov
Here is a Turbo Tax article on taxs and self-publishing
https://turbotax.intuit.com/tax-tools/tax-tips/Self-Employment-Taxes/A-Tax-Cheat-Sheet-for-Kindle-eB...