Hi. I´d like more information about this job. Although I live in Brazil now, I´m an American researcher, writer and editor, a native English speaker with excellent language skills and years of experience at producing texts of all kinds. I have written several book reviews for Kindle, and a variety of longer bios. I have also worked in marketing and sales, and so I´m prepared for your sales emails. In order to write the 4 texts mentioned, I´ll need to know more about the author, read the book and understand the way to present your product to your target audiences (which you´ve already mentioned briefly). I can produce a 1000 words (4 x 250) in 3-4 hours at $15/hr or for a fixed rate of $40, including a quick skim of the book. If you feel that I should know your book well before writing about it (which would be ideal and ethical, but not always practical), it would take more time, depending on the length of the book. Please contact me for further discussion. Best, David