PARIS (AP) — Former French President Nicolas Sarkozy described the prison where he spent 20 days as a noisy, harsh “all-grey” world of “inhuman violence” in a book released Wednesday that also offered political advice about how his conservative party should appeal to far-right voters.

In “Diary of a Prisoner,” the 70-year-old says his own tough-on-crime stance has taken on a new perspective as he recounts the uncommon turn in his life after being found guilty of criminal association in financing his winning 2007 campaign with funds from Libya.

Hundreds of supporters queued up Wednesday at a bookshop in a Paris upscale residential neighborhood where Sarkozy staged his first book signing.

The court sentenced him in September to five years in prison, a ruling he appealed. He was granted re

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