Billionaire's Rules Books in Order

Secrets, plans, and emotions finally start converging. Someone is bound to get caught, and it may not be for the reasons expected.

After so much control and conflict, tenderness becomes its own kind of risk. Ivy wants something real, not just something intense.

Cullen and Ivy move toward something more binding, even as fear keeps tugging them back. Commitment means trusting a man built on restraint and secrecy.

After one mistake changes everything, Ivy learns that Cullen Sharpe's punishments are never only about work. The consequences of wanting him get steeper fast.

Ivy stops simply reacting and begins pushing back against Cullen's rules. Their relationship gets hotter and more fragile as control shifts.

Good girl Ivy Spellman takes a temp job at a billionaire drug company and catches the eye of CEO Cullen Sharpe. One mistake turns their office tension into a dangerous lesson in desire and control.

Hidden motives start surfacing and leave Ivy more vulnerable than ever. What was private is suddenly at risk of being laid bare.

Vulnerability starts replacing some of Cullen's hard edges. But falling for him means facing whatever he's been trying hardest to hide.

The final installment brings Ivy and Cullen to the question at the heart of the series, can love survive once control loosens? Freedom, trust, and choice all come due here.

Old danger and unresolved motives push the story into another chase. Ivy and Cullen have to decide whether they are pursuing love or running from the truth.

Attraction alone can no longer carry them when deception starts piling up. Ivy has to decide whether Cullen's dark edges are worth trusting.

Cullen and Ivy both have more to lose now, which makes every gamble sharper. Taking a chance on each other may still be the only way forward.

Pressure from outside forces and buried history turns their affair more volatile. Cullen wants control, but even he can't command every threat closing in.

What looked like protection may be another kind of prison. Ivy needs to see the difference before the walls close around her for good.

The fallout from earlier choices catches up with them. Love, loyalty, and power collide in a story that refuses to stay simple.

Ivy is deeper in Cullen's world, but truth remains the one thing he withholds. The more she wants him, the more dangerous his secrets become.