After you’ve posted for a while and become comfortable inserting images, you may start to feel that the default settings aren’t working for you. The thumbnail is too small, the medium size not quite large enough . . .

Go to your main menu and locate Settings/Media. On this page, you can make your thumbnails a little larger (200 pixels makes a large thumbnail). Or you could set the size of your Medium image to fit the width of your post space – which might be 450-600 pixels.

NOTE: These settings only change the appearnce of the images in your post. Your visitors can still click your images to view them at their largest size.