Concepts
Jurisdiction-neutral material — how to think about the subject rather than what any one law says. These do not multiply by country, so they can be written at any time without waiting on a jurisdiction.
Depth tiers
What Tier 1, 2 and 3 mean, and why the tier is printed on every page rather than hidden in an editorial policy.
Sub-national patterns
Federated countries do not vary in one shape. Four distinct patterns, what each one means for where the law actually lives, and why "solve the US, solve them all" is wrong.