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We want to provide online services that are easy to use, useful and reliable. This can involve placing small amounts of information on your computer or mobile phone or other device. These include small files known as cookies. There's a link to general advice about managing cookies at the end of this page.
Cookies cannot be used to identify you personally.
These pieces of information are used to improve services for you through, for example:
| crc_size | Store the number of results you have chosen to see in search and browse pages (cookie will not be set you don't change the default setting) | Expires after 180 days |
| PHPSESSID | Random string of letters and numbers | Expires when you close your browser |
| ctbar:www.crcpress.com | "active" - stops the cookie pop-up appearing every time you visit the website after you have clicked "close" | Expires after 90 days |
Name | Typical Content | Duration |
|---|
| loc | geolocation cookie | Expires after 30 days |
| uit | User id and login time tracking | Expires after 24 hours |
| dt | Date tracking cookies for determining expiration of other cookies | Expires after 30 days |
| di | Date tracking cookies for determining expiration of other cookies | Expires after 2 years |
| uid | User id and login time tracking | Expires after 2 years |
| uvc | Randomly generated number | Expires after 2 years |
| psc | View counter cookie | Expires after 2 years |
| __atuvc | URL-encoded array of numbers | Expires after 2 years |
Name | Typical Content | Duration |
|---|
| datr | randomly generated number | Expires after 2 years |
| c_user | User id and login time tracking | Expires when you close your browser |
| lu | randomly generated number | Expires after 2 years |
| s | randomly generated number | Expires when you close your browser |
| xs | randomly generated number | Expires when you close your browser |
| locale | Geolocation cookie | Expires after 7 days |
Name | Typical Content | Duration |
|---|
| _utma | randomly generated number | Expires after 2 years |
| _utmb | randomly generated number | Expires after 20 minutes |
| _utmc | randomly generated number | Expires when you close your browser |
| _utmv | information about how the page was reached | Expires after 6 months |
| _utmz | randomly generated number | Expires after 2 years |
| NID | randomly generated number | Expires after 6 months |
| PREF | randomly generated number | Expires after 2 years |
Name | Typical Content | Duration |
|---|
See further details on the cookies set by Google Analytics.
Learn how to allow, block, delete and manage cookies, on AboutCookies.org. You can also read your browser's built-in or online help for more information.