How do I insert a picture into an email?

Not an attachment. It is an invitation.
How do I insert a picture into an email?
Here's a link to a Yahoo! Mail Errors and Problems Reporting and Help Request Form:


http://help.yahoo.com/l/us/yahoo/mail/ya...





Here's a link to a Yahoo E-Mail Help Request Form:


http://help.yahoo.com/l/us/yahoo/mail/ya...
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