Can Anybody Help Me? Formatting

Hi to everybody, and in particular senior topshelfers in this closet.
I have a story which I would like to post, but it has a series of images which have captions to them. I could post it as a pdf which I have done in the past with stories that have several images, but Erin tells me that I may be losing readers by doing that. I have tried going on line and using some code to place images right and left to try and wrap text, but it just does not come out right. Can anybody help me with formatting?
Maryanne