A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.

A number of our pages use cookies to remember if you have agreed (or not) to our use of cookies on this site. Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, but if you do that some features of this site may not work as intended. The cookie-related information is not used to identify you personally and the pattern data is fully under our control. These cookies are not used for any purpose other than those described here.

Some of the instructional embedded Youtube videos make use of Google Analytics cookies. These cookies are used to track video viewing activities by website visitors. This data is processed by Google outside of the EEA (European Economic Area). This means that we ask your consent to use these cookies. If you chose to disallow the use of these cookies, the access to our website will not be impacted. However, it may be possible that you will not be able to see the embedded Youtube content.