There are many tutorials out there for creating maps in Drupal but most of them focus on just one layer on a map. This tutorial is for creating one map with multiple, switchable layers complete with pop-ups and a title. This tutorial covers creating a primary map based on one main content type and also adds an additional layer for a user's profile. This is a lengthy but thorough tutorial and I'll try to add images or a video at some point soon.
Inserting Inline images with the body text can be approached by different methods which will give various levels of flexibility. Although there are at least half a dozen techniques, this article talks about just two, one quick but less flexible, while the other one is not as quick but offers the greatest flexibility. What it boils down to is this: if you use a field to upload and place your image instead of just a WYSIWYG button to insert your image, you will have more flexibility overall.