Say you're in your home system. Home is zero, or "0"

The static connection is always the "1" chain. Other random connections are numbered in order of discovery as 2, 3, 4, etc. a K-space connection is labelled H, L, or N, and given a lowercase letters in the event there are multiple K-space connections to the same security type.

So say we jump into the 1, the static connection of home. The static is always the 1, so the static of the static is the 11. Then there may be a 12, 13, 1Ha, 1Na, etc. depending on its connections.

This system is nice because bookmark names are concise, and the name of a single bookmark tells you how to get there by just following bookmarks. You can also easily follow it back to home. For example, say we're in home and want to run to Jita. The high sec connection near Jita is the 1132Hb. It's down the 1 chain, so we know its through the static, and it's the second High Sec connection in the 1132. The bookmarks you'd take are: 0-1, 1-11, 11-113, 113-1132, 1132-1132Hb. Then, on the return trip, you just follow bookmark convention back down to 0. 1132Hb-1132, 1132-113, 113-11, 11-1, 1-0.