FiveCentNickel. The book available is "Unveiling the Retirement Myth" by Jim C. Otar, a certified financial planner from Toronto. It has garnered some good reviews over at Amazon, where it sells for $49.99.
I'm not entirely certain why this book is being offered for free, but I would recommend you take advantage of the offer. The e-book can be found here
Don't forget to thank Nickel for this great find!