According to Richard Saul Wurman in Information Architecture, there are five ways to organise information, which can be remembered by the acronym LATCH:
L by location
A by alphabet
T by time (many museum shows are organised by timeline)
C by category (the way department stores are organised)
H by hierarchy, from the largest to the smallest of something, from the reddest to the lightest red, from the densest to the least dense, and so on.
The main way you organise something is by deciding how you want it to be found.
(Design Manual)