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Supplementary statement by CALVENDO Verlag GmbH to the General Data Protection Regulation (GDPR)

Last updated: 25.05.2018


As a user of our website, you will receive in this statement all necessary information regarding the General Data Protection Regulation, i.e. to what extent and for what purpose we or third party providers collect and use your data. Note that the latter is collected and used strictly in accordance with the regulations of the German Federal Data Protection Act (BDSG) and the Telemedia Act (TMG). We are particularly committed to the confidentiality of your personal data and therefore work strictly within the limits set by law. The collection of these personal data takes places, as far as possible, on a voluntary basis. Also, we will only pass this data on to third parties with your express consent. We ensure high security for particularly confidential data such as payment transactions or for your requests to us by using SSL encryption. At this point, however, we would like to point out the general dangers of the use of the Internet, over which we have no control. Especially in email correspondence, your data is not secure without further precautions and may be collected by third parties.

Information amendment, deletion and blocking

At any time, you may receive information, free of charge, about the personal data we have collected and stored about you as well as about the origin, the recipient and the purpose of the data collection and data processing. You also have the right to request the correction, blocking or deletion of your data. This does not apply to data, which has to be kept due to legal regulations, or which is required for proper business transactions. This data is stored in a lock file for control purposes so that data can be blocked at any time. If the data was not collected due a legal archiving obligation, we may delete your data at your request. If the archiving obligation applies, we may then only block your data. For all questions and concerns regarding the amendment, blocking or deletion of your personal data, please contact our data protection officer under the contact data in this data protection declaration or at the address stated in the imprint.


We use cookies on our website. These small text files are stored on your PC by our server. They support the presentation of our website and help you navigate on our website. Cookies collect data about your IP address, your browser, your operating system and your Internet connection. Neither do we link this information to your personal data, nor do we pass it on to third parties. Under no circumstances are cookies used by us to bring malware or spyware onto your computer. You can also navigate our website without the use of cookies. This may however result in a limited display and functionality of our offer and website.

If you wish to deactivate the cookies, you can do so by changing the settings of your browser. Please use its help function to find out more and make the necessary changes.

You can manage online ad cookies by using the following links: for the USA, and for Europe.

 Collection of access data

The presentation of the contents of our website technically requires the collection of certain data about the user. When you access our website, so-called server log files are collected by us or by the web host. These log files do not allow us to draw any conclusion about you or your person.

The relevant information needed consists of the name of the website, the file, the current date, the data volume, the web browser and its version, the operating system used, the domain name of your Internet provider, the referrer URL of the page from which you switched to our site and the corresponding IP address.

We use this data for the display and the delivery of our contents on our website as well as for statistical purposes. The information collected supports us to better deliver our contents and to continuously improve our offer. We also reserve the right to subsequently check the data collected, should there be a suspicion of the illegal use of our offer.

Third-party content and services

The offer on our website may also include the content and services of other providers which complement our offer. Examples are Google Maps, YouTube videos or graphics from third parties. Using the services of a third party from our website regularly requires the transmission of your IP address. This enables the providers to retrieve your user IP address and to store it.

We make every effort possible to include only those third party providers who use IP addresses solely for the delivery of their content. However, we have no influence on which third party provider may save the IP address. This may, for example, be the case for statistical purposes. Should we know of the collection and storage processes by third parties, we will indicate this to our users.

With regards to the above, please refer to the data protection declarations of the respective third-party providers and service providers whose services appear on our website. These are also listed in this data protection declaration.


On our website, you may register for our newsletter. For this purpose, your email address is required. However, taking into account the relevant legal regulations, we must check whether you actually are the owner of the email address provided and would indeed like to receive the newsletter. For this purpose, we therefore collect information, which allows us to carry out such a check. The data collected is used to send the newsletter and for the user to receive it. Should the data serve another purpose and it shall in no case be passed on to third parties. Apart from the information required to send out the newsletter, no other data is collected by our website.

Just like the sending and receiving of the newsletter depends on your consent, you may also revoke the consent to the collection and storage of your data at any time without giving any reasons. For this, please use the "Unsubscribe-Link", provided in our newsletter.

Personal Information

We only collect personal data within the scope of data avoidance and data economy, as long and as far as it is necessary for the use of our website or prescribed by law. The protection of your personal data is important to us and we strictly adhere to the relevant legal regulations and this data protection regulation when collecting and processing personal data. If the purpose of the data collection ceases to apply or at the end of the legal storage period, the data collected will be blocked or deleted.

Our website can also be used without passing on or the collection of personal data. Should personal data - such as your name, address or e-mail address – be collected, it would then be on a voluntary basis. No data will be disclosed to third parties without your express consent.

Please note that data on the Internet is generally not always securely transmitted. Data exchange protection cannot be guaranteed especially in email correspondence.

Server Logfiles

The server log files are anonymous data that are collected when you access our website. This information does not allow any personal conclusions to be drawn about you, but for technical reasons it is indispensable for the delivery and display of our contents. Furthermore it serves for statistic purposes and for the constant optimization of our contents. Typical log files are the date and time of access, the amount of data, the browser used for access and its version, the operating system used, the domain name of your provider, the page from which you were redirected to our offer (referrer URL) and your IP address. Logfiles also allow a precise check in case of suspicion of illegal use of our website.

SSL encoding

Our website uses SSL encryption for the transmission of confidential or personal content from our users. This encryption is activated, for example, during the processing of payment transactions and for enquiries made through our website. Please make sure that the SSL-encryption is activated on your side during corresponding activities. The use of encryption is easy to recognize: The display in your browser line changes from "http://" to "https://". Data encrypted via SSL cannot be read by third parties. Only communicate confidential information if SSL encryption is activated. If in doubt, do not hesitate to contact us.

Opposition to advertising emails

We are obliged to publish our contact details in the legal imprint. However, third parties may use these, for sending out unwanted advertising and information. We hereby object to any sending of advertising material of any kind not expressly authorized by us. We also expressly reserve the right to take legal action against the unwanted and unsolicited sending of advertising material. This applies in particular to so-called spam emails, spam letters and spam faxes. We point out that the unauthorized transmission of advertising material may affect competition, civil and criminal law. Spam emails and spam faxes in particular can lead to high claims for damages should they disrupt business operations due to the overflow of mailboxes or fax machines.

Facebook plugin

You can find plugins of the social network Facebook on our website. Its provider is Facebook Inc, based in the USA, California 94025, 1 Hacker Way, Menlo Park. The Facebook logo or the "Like" button on our site indicated the Facebook plugins. You may also refer to the overview of the Facebook plugins at

On our website, we use the plugin to establish a direct connection to the Facebook server. Should you click on the logo of “Like” button if Facebook, you will then switch to their page through your browser. For Facebook, this means that you can use our website with your IP address to access their website. With a click on the Facebook "Like-Button" you hence link contents of our website with your profile on Facebook. Facebook may associate your visit to our site with your account. We have no knowledge of what content is transmitted to Facebook and how Facebook uses it.

For more information on data collection and use, please refer to the Facebook Privacy Policy, which can be found at Simply log out of your Facebook account beforehand, should you want to prevent your visit on our website from being associated with your Facebook profile.

Google AdWords

On our website, we use Google AdWords, an online advertising program from Google Inc, which also uses conversion tracking. With this tool, Google AdWords places a cookie on your PC when you visit our website via a Google ad. This cookie is only valid for 30 days. It is does not allow personal traceability. If you visit and use our website and the cookie is still working, we can see through Google Adwords that you have clicked on a corresponding advertisement and have been redirected to our page. Each Google AdWords customer is assigned a different cookie. Cookies are therefore not traceable via the AdWords customers' websites.

The data collected through conversion cookies is used to generate conversion statistics for AdWords customers. As a customer of Google Adwords, we are provided with the total number of users who responded to our ad and were then directed to our website and who were tagged with a conversion tracking tag. We do not receive any information during this process with which we could personally identify you as a user.

You may choose not to follow the tracking process by disabling the Google Conversion Tracking cookie from your Internet browser. If necessary, use the browser's help function for further information. For more information about Google's privacy policy, please visit

Use of Google Analytics

We use the web analysis service, Google Analytics, from Google Inc. on our website, which uses cookies. These are text files that allow an analysis of your user behaviour with regards to our website, by saving them on your PC. The cookies generate information that is transmitted to a Google server. These servers are usually located in the USA, but follow agreements with the European Economic Area. Before being transmitted to the United Stated, your IP address is shortened. Only in exceptional cases will the IP address be shortened only after transmission to the USA. In such cases, Google evaluates the transmitted information and provides further services to website operators. The transmitted IP address is not passed on to other Google services.

By changing your browser settings, you can prevent cookies from being stored onto your computer. However, this may result in display and functional restrictions when using our website.

A browser plug-in also prevents the collection and use of data generated by cookies. You can download it from the following link:

Learn more about Google and Google Analytics' privacy policy at: or at

Instagram Plugin

We also include functions of the online service, Instagram, on our website. The provider of these functions is Instagram Inc. located in the USA, CA 94025, 1601 Willow Road, Menlo Park.

The Instagram button allows you to connect to your Instagram account when visiting our pages, provided you are logged in on Instagram. Instagram receives the information about your visit to our website and can associate this visit with your Instagram profile. We have no information about the content of the transmitted data, nor of its use by Instagram.

For more information about Instagram's data collection and use, please see the Instagram Privacy Policy at

Twitter plugin

We also use functions of the microblogging service, Twitter, on our website. Twitter is operated by Twitter Inc, a US company based in the USA, San Francisco, CA 94103, 1355 Market St, Suite 900.

The main function of Twitter is the "Tweet function". If you use these via our website, a link will be established with your Twitter account. Data may be exchanged with other users and data may be transmitted to Twitter. We receive and have no information about the content of the data sent to Twitter, nor are we informed of its use. Find out more about these questions at There you will find the detailed data protection statement of Twitter. Furthermore, the platform offers the opportunity to design your own data protection settings at

XING plugin

On our website, we use functions of XING, a network that aims in particular to promote professional contacts among its members. The provider of this network is XING AG. It is located on Dammtorstraße 29-32 in 20354 Hamburg, Germany.

When one visits one of our pages containing a function of Xing, a connection to XING’s servers is established. We are not informed whether or not XING stores personal data. To the best of our knowledge, XING does not evaluate or store any IP addresses.

Should you like further information on XING’s data protection, refer to XING’s data protection declaration at There you can also learn more about the share button of Xing.


CALVENDO publishing house GmbH
Ottobrunnerstrasse 39
82008 UnterhachingGermany