This tutorial will show you how to add a Logo to your Email Signature.
Step 1: Go into Settings from the More dropdown menu.
Step 2: Click on Signatures in the left menu.
Click on the signature you want to add the logo to
Step 3: Position your cursor to where you want to place the logo.
Click the + icon to show stylization options.
Step 4: Click the Insert Image icon to upload your logo.
Drag and drop your logo into this box
Step 5: Stylize your logo, align to left/middle/right, insert link, etc.
Grab the blue corners to resize the image.
Step 6: Confirm the logo looks good, then click Save.
Your logo will now appear in all messages you send.