On the majority of pages on this site buttons describing the available information are situated on the left. While you are reading the content you may also find that there are some buttons embedded within the information that can lead you to other relevant detail. Should you find that you get lost while browsing the YOPA logo at the top left of the page can be clicked and it will return you to the home page.

On pages which contain images each image will be clickable in order to present an enlarged version. Each image is labelled with a number such that you may request a printed version by emailing us and specifying which page and which image number you would like printing.

Should you find any of the content difficult to read or too small then this can be addressed using tools available to the system you are using. For example on Windows one of the easiest ways to deal with this is to hold the control key and use your mouse wheel to zoom in or out. Should you be using a tablet or a mobile phone then the two finger method of zooming can be employed.

As you use the site should you have any ideas or suggestions for improving the content please feel free to email us as we would welcome anything that makes this site more relevant to people. Please note however that we are not in a position to answer general questions regarding the Internet or how to use your computer.