>I guess that's simply how it works nowadays in publishing: writing the book is work, but then you also need to spend quite some time promoting it, in the hopes

>I guess that's simply how it works nowadays in publishing: writing the book is work, but then you also need to spend quite some time promoting it, in the hopes not only that it boosts sales, but also that the boosted sales put the book in some bestseller lists, boosting sales even further. PR Tours for Books have been around for decades. The format may have changed but the concept has been around for a long time.