Amazon has been in a brutal battle with Hachette since the publisher's contract expired in March, but Business Insider's source says that negotiations with Simon & Schuster took only took three weeks and closed two months before its contract expired.
The publisher and the tech giant have signed a multi-year, print and digital contract. Simon & Schuster made its original offer and an agreement was reached after only a few tweaks by Amazon, according to our source.
Initial reports of Simon & Schuster's negotiations with Amazon started back in July.
It appears that Amazon's negotiations with Hachette still aren't over.
Disclosure: Jeff Bezos is an investor in Business Insider through his personal investment company Bezos Expeditions.