You can also post images "inline" by using the square brackets [[ code, thusly (copy and paste the code into a profile, then hit preview - you don't need to save) :
This is to show [[Image:ADWP-227.png|30px|Sailing ship silhouette.]] images between text.
[[Image:Military_Badges_and_Insignia-1.jpg|20px|Remembrance Poppy]] This person passed away of war related causes . . . using this statement to show an image used as a bullet point.
[[Image:ADWP-831.png|50px|Whovian Producer]] (insert name here) was one of those who operated a camera on the television show Doctor Who.
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With the square brackets, the text after the pipe and before the closing brackets ]] acts as alt text. The square brackets allow for alignment as well. You just don't get the caption beneath the image.