What is the best way to adhere an image to the indented area on the front cover …?
We suggest you use the method you are most comfortable with. We have used rubber cement; applied and dry to both surfaces (this method is NOT acid-free, but it is easy to clean and remove image). Other adhesives that work well are double-sided permanent adhesive strips, 3M Spray Mount, and cold mounting adhesive. Basically, any ‘porous’ adhesive will work, but avoid water-soluble adhesives because they could ‘warp’ your image.