One of the considerations with any new product is the speed with which the manufacturer can get the product onto the market. In the case of an eBook, that can be a matter of hours from original concept to delivery to a paying customer. Depending on the size of the eBook to be written and remembering a lot of the content may already exist and merely require cutting and pasting, you can write a book in 20 hours and then format and publish in under sixty minutes. Having said that, there is something to be said for taking your time and double checking things. Many great writers advise once you have finished your manuscript you put it in a drawer and ignore it for a week or two. Then it will read very differently thanks to the magic of time and some metaphorical distance. It is amazing how you can read a manuscript a dozen times and not see something that leaps off the page at you either a week later or when the same words are printed on paper. The speed of events increases considerably when we leverage the technology we have in computers, word processing software, the internet and so on. We need to be aware of this and make sure we compensate for this speed with increased awareness of the need for accuracy and the risk we might easily fly by something important. Speed to market is one thing, but any time saved is wasted if we are forever recalling the product for fixing.