How can I add a logo to my Title slide?

For the Title template, a logo may be positioned into the header of the page. This is the only template where the logo is positioned outside of the footer. To add a logo to your Title, select Add Logo from the properties panel on the left. You will automatically be launched into the image library.  Search, import, or select a logo 

To find the option to scale, position, or add additional logos, click on the logo and the properties panel will show the logo options. Use the slider bar to increase/decrease the size,  and select Layout to choose the position. The logo can be placed either Top Right, Top Left, or With Title.