How to open pictures in email?

I want to know what is an easy way to make pictures smaller size in a email? What program is the best to edit pictures with? How easy is it to format pictures to the size you want?

ok i send pictures from my cell phone to my email, how do i open them all at once

Sometimes the pictures in an email will not open in the message and when I right click and click show picture they still do not show.

When I get an email with pictures attached I only get and X, how do I prevent this from happening?

The new yahoo email site won't show the jokes I recieve from my family, I really miss them. how do I open the photos???

I receive emails that when opened the picture or video are already open and visible without clicking on a link. How do I make this function work that will open this way?

Right now the pictures come up in Corel Photo House and I want them to come up in My Pictures.

I received an email from a friend and it contained some pictures. I am unable to see them for some reason. I would just like to know what I can do to see them.

Sometimes I get pictures in email that have a red box with an X in it. Right clicking-->show picture doesn't work. What should I try next? Thanks.