A contract safeguards your own peace of mind. It is your only legal and binding proof an agreement exists between you and your students.
The book includes an example contract and an (EU GDPR) Privacy Policy/Terms and Conditions example for websites.
Why freelancers need a teaching service contract with their students and customers
Pick-and-choose and change those parts that best fit your teaching niche purposes from the examples given inside the book. Create your own contract for face-to-face and online students
Example Privacy Policy statement for freelancing teacher websites