On the right is the html email, and on the left is the print ad. Often when full page ad space is purchased in a science journal the advertiser also gets a free banner ad insertion and it is common to accompany this with an email blast. For an html email the images must be located on a server available on the internet. I can design the html email and take care of sending it or you can do y our own sending. The link has been colored blue so that the email recipient knows its a navigation link.