Hi, My book will be mainly photos with some text descriptions, I don't have a book already written it is something I want to do/write while on my photographic journey.
Can I write it straight into e-book/template format? I don't want to start it in word as photos tend to jump about the page.
Go to the help pages. Among the links on the first page is one to a free book on how to format an e-book. If your book is primarily graphics, you will always have problems -- readers set typeface, point size, margins and other display options, meaning that graphics will always "jump around" and often be disassociated from the text. You might want to look into hiring a professional formatting service if a precise format is necessary for your particular vision. Good luck with your project.