What makes for a good flag?
In Ted Kaye's book, Good Flag, Bad Flag: How to Design a Great Flag, he outlines his five basic principles for designing a great flag. These are good rules to live by when designing a flag but there are obviously some great flags in the world that do break these rules.
Keep it simple, so simple a child can draw it from memory.
Use meaningful symbolism.
Use two to three basic colors.
No lettering or seals of any kind.
Be distinctive or be related.
"Roman Mars is obsessed with flags — and after you watch this talk, you might be, too. These ubiquitous symbols of civic pride are often designed, well, pretty terribly. But they don't have to be. In this surprising and hilarious talk about vexillology — the study of flags — Mars reveals the five basic principles of flag design and shows why he believes they can be applied to just about anything."
Linus Obenhaus talks about good flag design and gives excellent illustrations as to how flags should be viewed.