Are you allowed to take notes on a book you bought with a note taking app?
<p>Most books have something like &quot;no part of this work may be copied&quot; written on their first page.
Are you allowed to take notes on a book after you have purchased it with a note taking app, or would that count as a derivative work, which is not allowed either?
The notes would be stored on your device after you have saved them with note taking app.</p>
<p>I'm specifically asking about Germany.</p>

<p>Copyright is not absolute. While copyright is reserved by default, copyright law contains many exceptions, and a disclaimer in a book's imprint cannot override them. What exceptions are available depends on national laws. The <em>fair use</em> exception is famous, but specific to U.S. law. German law instead provides a number of exceptions for specific situations. For example:</p>
<ul>
<li><p>§ 51 UrhG: publication of citations is legal, if the amount of cited material is justified by the specific context. In particular, including citations is justified in academic works that discuss the cited work.</p>
</li>
<li><p>§ 53 Abs 1 UrhG: private copies are allowed, as long as the original was acquired in a manner that was not obviously illegal, and as long as the copy is not used directly or indirectly for commercial purposes. See the German Wikipedia Article <a href="https://de.wikipedia.org/wiki/Privatkopie" rel="nofollow noreferrer"><em>Privatkopie</em></a> for context. Limitation: entire books may only be duplicated by manual transcription.</p>
</li>
<li><p>§ 53 Abs 2 UrhG: analogue (non-digital) copies for personal purposes are allowed in some additional circumstances.</p>
</li>
<li><p>And some specific exceptions for schools, teaching, research, and data mining.</p>
</li>
</ul>
<p>What does this mean for taking notes?</p>
<ul>
<li><p>Notes that capture your own thoughts, or a summary of the copyrighted material in your own  words, are not derivatives in the sense of copyright. (However, German copyright law doesn't have a 1:1 equivalent to the term “derivative”. Instead, “adaptation” might be a better fit for the German <em>Bearbeitung</em>.)</p>
</li>
<li><p>If these notes are purely personal, you can likely copy parts of the book into your notes. For example, this might cover a diary in which you write down poems that you like.</p>
</li>
<li><p>Quotes/citations can be allowed when necessary to discuss the book in your notes. Remember to clearly cite the source.</p>
</li>
</ul>
<p>Personally, I keep extensive notes in digital form, for personal and for work purposes, and make extensive use of my right to cite parts of others' works, as necessary for discussion my notes. I generally keep those citations down to a level so that my notes could be published without copyright concerns, even if quoting longer passages could be allowed as an § 53 private copy.</p>

copyright licensing germany