The sites are so big that you may order 11x15 cm per side either two photos of size, or a photo of this size and a text.
It has also been shown that the album is very robust. Although more than 20 people have posted a text in the album, neither side was buckled and the linen cover was undamaged. Only a couple of thin parchment protective sides had slight creases.
Overall a very nice and sturdy photo album, so me a strong buy recommendation.