If you’re not familiar with WordPress then the format can appear a little unfriendly but don’t let this put you off. Look at the ‘categories’ column down the right hand side of this page and select the subject matter you want. When you get the list of docs, click on the title to open that item. In order to save space on this front page, most of the documents have been stored as pdf files whilst some are in Powerpoint. Click on the file name and the document will open up.
If you get to end of the page and have not found the paper you are looking for, click on the ‘older posts’ button and go to the second/third page of items.
In my experience, WordPress is a safe site and I have never heard of anyone having a (virus etc.) problem from downloading a pdf or ppt.