Parcels are always delivered quickly thanks to prime next day delivery except in the case of book pre-orders I've made. On more then 5 occasions in the past year, when I've had a pre-order on a book with Amazon I have been kept waiting for it to be delivered for a long time (the worst was three months passed the release date). I'm not sure if it's because they don't get enough of the first prints sometimes to meet their pre-order obligations but the mentally of just cancel your order if it doesn't arrive is irritating concidering on more then one occasion the first print has sold out and I then have to wait for the second print. I have heard this is also an issue with some video game pre-orders as well. So a word of warning to those pre-ordering books from Amazon, be prepared for a 1/3 chance of waiting past the release date for your pre-order or having to cancel the order to quickly find it elsewhere.