  Using effective field theory techniques we compute the next to leading order
Spin(1)Spin(1) terms in the potential of spinning compact objects at third
Post-Newtonian order, including sub-leading self-induced finite size effects.
This result represents the last ingredient to complete the relevant spin
potentials to 3PN order from which the equations of motion follow via a
canonical formalism. As an example we include the precession equation.
