If you are a self - publisher of your book, you still need to hire a literary agency as you may not be aware of the current market situation in the book industry. (thebookmarketingnetwork.com)
Having said all of that, it seems to be a reasonable buy for the current market situation in this area. (biggerpockets.com)
Such market linked plans can give you 6 % to 8 % approximate returns and it could be higher based on market situation. (myinvestmentideas.com)