There are several books about people communicating with the Pleiadians. Here's One I've Read.
Here's a Video about Bringers of the Dawn by Barbara Marciniak
I have found that Barbara Marciniak's information came to her through channeling spirits or aliens.
Pleiadian Contactee on Live Television Exposes Evil Agenda
The Pleiadian Connection - Full Documentary
Barbara Marciniak - Earth Pleiadian Keys to the Living Library - FULL.avi
PLEIADIAN PROPHECY The Great Changeover 2013 - 2027
Pleiadian Broadcast March 2015