Because an easement attaches to the land itself, it can burden owners who never agreed to it — which is why the law polices its boundaries so carefully. This chapter begins with the essential characteristics a right must satisfy, including the requirement that it accommodate the dominant tenement, and the limits that rule out exclusive possession and positive burdens on the servient owner. It then works through the routes to creation: express grant and reservation, implication by necessity, common intention and the rule on quasi-easements, conversion under section 62 LPA 1925, and prescription by long use. Finally, it examines what separates legal from equitable easements and how each is protected in registered and unregistered land, before turning to scope, actionable interference and the ways an easement comes to an end.