Here you can put your pic or an avatar and to the right side you can put any pic you want to show to your readers; your hobies, your country side, your car or a pet, whatever makes you happy.
Here you can put whatever you want to say something about you:
And any picture that will help your readers to get to know you better, if you want to. Your book cover (front and/or back) and a description of your book (how did you came to idea, what's the book about, synopsis, short content or whatever you think will make people want to read it).