Select a self-publishing company to work with. There are several companies online that allow you to publish and sell your book through their site with no set up fee.
Download the soft wear that the company you choose uses. For example, the publisher Blurb uses software called BookSmart™.
Select the photos you want to use for your book and format them (change file sizes, color correct).
Import photos into publishing software.
Determine price of book and how many you want to publish. Many online printers have no minimum and will let you order as few as one copy!
Send the word out to friends and family that your book has been published and is for sale!