The presentations for the library inductions for new Politics, Economics and CISD students are now up on the Information Skills area of the BLE: https://www.ble.ac.uk/ in the Politics and Economics sections. Go to the Introduction to... section and then About the Library to view the slides. You can also follow the links within the slides to key resources.
While you're in the BLE, why not have a look at the Getting Started section as well? It has lots of hints and tips on how to find materials at SOAS Library, as well as database guides, and links to online information skills tutorials you might want to try.
Don't forget, if you have any problems finding materials, come to the enquiry desk on Level A of the Library (just past the entrance), or contact the appropriate subject librarian - details are on our webpages: http://www.soas.ac.uk/library/contact/