What books has Dr. Claus Michael Sattler written?

Dr. Claus Michael Sattler has written the following books:

1. No data, no artificial intelligence (AI)! Think about data in a whole new way! The hidden gold of businesses!
2. No Data, No Artificial Intelligence! Just Think About Data Differently! Companies‘ Hidden Treasure!
3. Successfully Implement NIS2 in Small and Medium-Sized Businesses!
4. Successfully Implementing VS-NfD in Small and Medium-Sized Businesses!