Photo paper is a heavyweight paper of about 170gsm-300gsm and it comes in 4 types of finish, which finish you prefer depends on the task at hand - the different finishes generally have varying levels of shinyness and brightness;

Matt photo paper is great for images with a slightly less shiny finish - this could be used for flyers and/or brochures.

Semi-gloss photo paper has a slightly reduced gloss finish so again, this kind of photo paper is good for flyers, posters and brochures.

High gloss photo paper is excellent for high resolution, digital photos and can give brighter colours and a deeper black.

Glossy photo paper has a shine to the paper that helps to project the colours of the image that you are printing, It doesn't print as brightly as high gloss photo paper but brighter than semi-gloss photo paper, glossy photo paper is perfect for printing photos and digital images.
All of these papers are fast drying, fade and smear-resistant.