Do the Game of Thrones books have an ending?

Related questions

1. Is George RR Martin still writing Game of Thrones show?
2. Is George RR Martin happy with Game of Thrones?
3. Will George RR Martin change the ending?
4. How much money does George RR Martin make per episode?
5. Does George RR Martin like Game of Thrones show?
6. Is George RR Martin Rich?
7. Is Game of Thrones Season 8 in the books?
8. Does George RR Martin have children?
9. Will George RR Martin ever finish winds of winter?
10. Will George RR Martin finish books?

Tags

1. #ending
2. #acclaimed
3. #books
4. #sight
5. #release
6. #without
7. #working
8. #thrones
9. #which
10. #author
11. #winter
12. #martin
13. #since
14. #based
15. #winds
16. #series