Main Objections/Criticisms of Anarchism

Criticism: Anarchism can't provide law.

But it has ...

Anglo-Saxon Common Law
Law Merchant
Admiralty Law
many indigenous "customary law" systems
Celtic Ireland
Thing system of classical Iceland
American not-so-wild west

There is a lot of explanation and theory about how it might work today and in a future stateless society, in addition to how it has worked in past quasi-anarchist societies.

Murray Rothbard (e.g. Power and Market)
David Friedman (The Machinery of Freedom, Law's Order)
Anarchy and the Law - anthology
Polycentric Law Links