(60) The principles of fair and transparent processing require that the data subject be informed about the conduct of the processing operation and its purposes. The controller should provide the data subject with any other information necessary to ensure fairness and transparency of the processing, taking into account the specific circumstances and the specific context of the processing of personal data. In addition, the data subject should be informed of the fact of profiling and the consequences of such profiling. If personal data is collected from the data subject, he or she must also be informed whether he or she is required to provide it, and the consequences of not doing so. This information can be provided in conjunction with standard graphic signs that visibly, comprehensibly and legibly present the meaning of the intended processing. If the signs are presented electronically, they should be machine-readable.