Privacy & cookies
European Union privacy legislation obliges all European websites to notify users if "cookies"are used

Like all interactive websites, the website can only be used to its full by computers that accept cookies. 

Privacy : does not store or record any personal information about visitors to the site. does not maintain any form of online database, and does not transmit, give or sell any information to any third parties.


   Cookies are a standard Internet protocol; almost all websites use them, and they do not store personal information.
   They are tiny bits of code that are automatically sent to any computer connecting to a page of the website. cookies are only used for statistical purposes or to allow full use of exercises for students.
    Tracking cookies log analytical data relating to the number and origin of visitors to the website, and the pages viewed.

    We are obliged by European Union law  to inform you of our cookie policy, and how to prevent cookies being stored on your computer.
    If you do not want cookies to be stored on your computer, you can instruct your browser to refuse them. However it is important to understand that blocking cookies will prevent interaction between computers, and disable certain browser functions, notably with regard to logging in, viewing the right pages in the right language, ecommerce and other operations requiring communication between computers.

For further information on blocking cookies, see
   Some pages on - but by no means all - contain a small amount of advertising. Our advertisers, such as Google, may also use cookies to collect statistical information about your visits to this and other websites in order to provide advertisements about goods and services of interest to you.  does not have any control over the cookies that may be set by third party sites accessible through hyperlinks. 
   By continuing to use our website, you implicitly agre to accept cookies, unless you disable them on your web browser (Chrome, Firefox, Safari, Internet Explorer or other) .

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