  Black hole solutions and their thermodynamics are studied in Einstein-scalar
theories. The associated zero-temperature solutions are non-trivial holographic
RG flows. These include solutions which skip intermediate extrema of the bulk
scalar potential or feature an inversion of the direction of the flow of the
coupling (bounces). At finite temperature, a complex set of branches of black
hole solutions is found. In some cases, first order phase transitions are found
between the black-hole branches. In other cases, black hole solutions are found
to exist even for boundary conditions which {\em did not} allow a
zero-temperature vacuum flow. Finite-temperature solutions driven solely by the
vacuum expectation value of a perturbing operator (zero source) are found and
studied. Such solutions exist generically (i.e. with no special tuning of the
potential) in theories in which the vacuum flows feature bounces. It is found
that they exhibit conformal thermodynamics. In special theories with a moduli
space of vacua (at zero temperature), it is found that finite temperature
destroys the existence of the moduli space.
