Parisi Images recommends specifying up to 50% of the images in any one album. For example, if you order 50 images in your album, we recommend specifying 25 images. If you order 75 images, we recommend specifying 35 images, etc.
When choosing images, it is recommended to select from a variety of scenes (i.e. a few from the "getting ready" portion of the day, a few from the ceremony, and so-on). That being said, what's MOST important is for you to select any images that you particularly wish to be included.