The size is measured by the side length, so the photo album with the same price is the largest, so the photos can be typeset horizontally or vertically. Adding some elements in the blank space can get good results, and you can also cut off a part of the picture when you need to fill it.

If you need to completely fill the 3:2 picture, you need a vertical photo album, but the disadvantages of vertical photo album are very obvious. When there are horizontal pictures or cross-page prints, the effect is not as good as that of square photo albums.

Unless your pictures are 80% vertical, please choose a square photo album, because the photos printed across pages in a square photo album are very atmospheric.