3. What’s the best way Guarantee that I haven’t used a ghostwriter?

If you care about your privacy being breached, you should go to reliable ghostwriting services that don’t compromise your privacy. Companies that understand that the privacy of the client is sensitive information have a non-disclosure agreement (NDA). For instance, The Author Tribe has an agreement that ensures the privacy of the writer. Also, the company's writers have years of experience and are trustworthy individuals, so the clients can have peace of mind that their work is in safe hands.