International Chamber of Commerce UK | UK | ICC UK Cookie guide (PDF)
From the introduction:
“In line with recent changes in European legislation, UK law now requires website operators to ask for a website user’s permission when placing certain kinds of cookie on their devices for the first time. Where consent is required, the law states that it should be ‘informed consent’. This increases the onus on websites to ensure that visitors understand what cookies are and why website operators and others want to use them. This guide aims to help both website operators and website users come to terms with the new law by placing cookies into four categories, based on their function. […] This guide is designed to help website operators to provide information to users in language they can understand and enable users to make an informed choice. Wide adoption of standard language will also, it is hoped, reduce the learning journey of users across websites.”
(Source: dataprotector.blogspot.com)