Fixin to open a website for donations and sale of e-books,What disclaimers etc do I need 2B cool w/Fed Trade C

Building my First website! Going to ask for donations for a new charity and sell e-books (info) What all do I need @ bottom of page? Disclaimer? Terms of Service? Copyright and trademark BS- Want a be Kool w/fed trade comm,and any other authorities, AND keep from getting sued,for what I don’t know! Like I said this is my first attempt to build my own website and sell thy e-books! Somebody help me! PlZZZZZZZ Any websites that explain all u need to stay out of trouble?***That are Free!! Knowledge Thank You God Bless- GOoD DaY! Mikey P.