Proquest Help can be sourced from the question mark on the right hand side at the bottom of the page. This Resource Center contains a link to Training (LibGuides). Select this for help on Proquest in the form of webinars and PDF guides.
In the Resouce Centre are videos on Research Skills which address issues such as choosing a topic, evaluation of articles, peer review and citing articles using the Proquest databases.
Some videos on searching Proquest databases are avaialble from the Proquest Training Platform on Youtube.
Youtube also has other videos from a range of sources.