I'm afraid I did not give enough information when I asked the question. When a person writes a book and wants to submit it to a book publisher or book agent, the author needs to create a book proposal that talks about the book. It must include 4-5 books that are similar to yours that are selling, and you explain how your book is different from them. The book proposal helps the publisher or agent decide whether to carry your book or not.
So do you know about any "Christian" books out there that deal with sin? I'd like to see if they are good candidates for my book proposal.
If you are struggling with sin, re-read Romans 1-8. Paul struggled against sin because of the law of sin at work in him (Romans 7). The Spirit showed him the stronger law of being in Christ Jesus (Romans 8), and he was set free from the law of sin and death. Paul cried out, "O, wretched man that I am! Who will deliver me from this body of death?" The Spirit showed him (and me and many others) the way out. My concern is that we have given up on overcoming sin and compromise with it. Don't give up! Keep your nose in the word of God and let the Spirit lead you out. You can't do it by your efforts. That's what the gospel is for. The gospel of Christ is the power of God to deliverance, not your efforts, not your trying harder. The gospel of Christ is the power of God released to save us from sin--by faith, not from following laws, as Paul had been trying to do. When we believe Christ, then power is released to deliver us from the flesh to walk in the Spirit.
Some books dealing with deliverance from sin would be
Handbook to Happiness, and
Experiencing God. I highly recommend them if you are struggling with sin.
Remember the words of the angel to Mary: "You shall call Him Jesus, for He shall save His people from their sins" (Matthew 1:21). The devil wants you to believe otherwise.