When building a design for print document in InDesign it’s easy to get confused over the various guides, margins, and grids on the page. However, these are essential elements to your page layout, so it is important to know what they all are and what they do. With a page layout framework of grids and guides in place, it is a relatively straightforward task to place the page elements and give the content a structure.
Here’s a sample PDF handout breaking down a ‘typical’ InDesign double-page spread. Click the image to access the pdf.
braw blog 
This is helpful, I recently put together a page for a leaflet and did not leave the bleed properly.
I will contact you through email for further informant on the training you offer.