E-books for sale

Hi everyone, I hope your well. Im am in the process of writing some e-books and am looking to get them released before christmas. I was thinking, in anticipation of this, would it be a good idea to purchase a reading device to read these e books from? Here's the best one's ive come across. They would make an excellent 'Dear Santa' present!!! Check out the links below or the cheapest one available at Amazon would be the one below. Give me some ideas on content you would like me to include in these books. Ive got a great Curry receipe book ive written and also a healthy cookbook too. Let me know if you'd be interested in knowing more. Lots of love Darlo x