You can pay and download this book instantly. You do not have to wait for the shipment to arrive to start your preparation since in this case you will be ordering an ebook for which ONLY soft copy is given. You can download and start reading the book immediately. NO SHIPPING OF HARD COPY IS INVOLVED.
The hardcopy of this book is also available. But the customer that opt to purchase ebook will only get the softcopy. If required, hard copy has to be purchased separately.