How to determine which columns are shared between two tables?

Question

Very new to SQL Sever here... I understand the concept of joining tables, etc. but what is the easiest way to determine which columns are shared?

Say for instance we ha

Answer 1

select COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = 'Table1'

intersect

select COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = 'Table2'