For adding a logo to your publication follow these steps:
Step1. Login in, click on the "MY PUBS" option on the left bar, and select the flipbook you want.
Step2. Click the "General Settings" button.
Step3. Go to "Advanced" tab and choose the "Branding" option.
Step4. Check the "Show Logo" box and upload your logo image. Besides, you can add a link to your logo and define its position.
Step5. Click the "Save and Close" button when you're done.