“Silent Coup” was by Leon Coldny. But lots of interviews with Liddy. I think it was through that book that John Dean tried to sue Liddy. The case was dismissed. Dean never testified against Liddy to lay out his case.
Liddy said the break-in wasn’t political, but to get and remove materials linking Dean’s future wife to a call-girl ring.
Dean always claimed he was brought into the whole water-gate thing well after it happened, which is a bald faced lie. He was involved way before any of this happened.