Taken from here: https://freedomwire.com/article-v-convention-of-states/

There are two ways to amend the Constitution: 1) Congress can propose amendments and the states can ratify them, or 2) The states can call a convention to propose amendments and send them back to the individual states to be voted on.

The former has been done 27 times; the latter has never been tried.

In order for a convention to be called, 34 states must call the convention and 38 must vote to ratify any amendments proposed at the convention.

The convention would be limited to three areas: 1) limit the size, scope, and jurisdiction of the federal government, 2) impose fiscal restraints on the federal government, and 3) create term limits for government officials.