Grids indicated in red.
This example does not adhere to a grid as the text at the top-left is on an angle compared with the text below it. Also the red circular 'sticker' design at lower right is on a different angle and randomly placed in relation to other text.
The layout of the images in this example is obviously in an off-set hexagonal pattern with the text at top and bottom not in relation to this.
Andy Warhols "Marylin Monroe"
This magazine image seems to demonstrate a fairly tight grid.