Regarding writing - one thing I'd definitely recommend is getting some friends to read over your draft manuscripts as they'll see mistakes in both the English and the plot-line that. as the author, you're blind too.
As far as publishing on the Kindle - it's fairly straight forward - first get an Amazon account (or use the log-in details of your existing account) and use this Amazon account to register on
http://kdp.amazon.com/ - you'll then get your own "Bookshelf" where you can upload your ebooks and prepare them for sale. Just follow the comprehensive set of on=line instructions Amazon provide about how to prepare your book for publishing.
The simplest way to upload the book is to export it from Word as an HTML file and then, from within your Bookshelf, add a new book (filling in all the details about the book), then point the upload requestor to the set of HTML files you exported from Word.
For larger books you can prepare the document files (like adding a table of contents for the chapters) using an application that generates files in the formats Amazon accepts. Amazon recommend Mobi Pocket Creator for generating the ebook. However, I found that Mobi Pocket Creator didn't generate the table of contents for the chapters in my book correctly, and I ended up using Calibre, which not only is an excellent ebook reader, but also has really good facilities for generating ebook files. Calibre generated the TOC without any problems. It also allows you to export in a range of ebook formats including epub.
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