Publishing your own book is a very simple process at this time. You certainly don't need to send your script to dozens of home publishers in the hope that they will accept your work. And you don't need to pay a vanity publishing house an arm and a leg for them to publish the book for you.
1. Create an account
If your new book is to follow the trend of being published as an eBook then online publishing platforms should be your first port of call. They have a publishing system and register very easily. It takes a little longer than creating something like a Facebook account but it's just because it tends to send you money so you need to let them have a detail from where to send a check to, that kind of thing.
If you want to touch your book and hold it in your hand then you also need to set up an account to handle this. Again, online book publishing is the first choice, this time with subsidiaries to create them. When you use this to publish your book, they will handle everything from beginning to end, including posting it to your customers.
Image Source: Google
2. Proof of reading your new book
Run your new book through your word processing grammar and spelling checker. This will spot any glaring errors that need to be corrected but isn't a substitute for the next part of this process, actual proofreading. If you haven't already done it, proofread your book.
Ideally, print it out and read it out loud, tracing your finger along the words to make sure that you don't skip any. This will throw up anything that doesn't make sense or needs correcting before you go to the final stage.