Avoid doing business with the fake and bogus publisher: WORLD SCIENTIFIC.
If you have a low quality conference, you can spam people if you book some space in the Bogus Volumes of this Publisher
This is the Typical SPAM from World Scientific and Imperial College Press. Two Bogus Publishers with some journals in ISI.
They are totally bogus because they publish proceedings of more than 30 Bogus Conferences per year. We strongly recommend you to avoid them.