Grouping/sorting entries of the bibliography - biblatex

Question

I want to group entries of the bibliography based on my own preference (not by entry type). Right now I'm adding my bibliography file with all the entries at the end of my document like this:

\usepackage[style=numeric]{biblatex}
\bibliography{src/bib/Literaturverzeichnis}

\begin{document}

\printbibheading

\end{document}

I am looking for a way to create some subsets of the bibliography entries and list them one after another up, seperated by a blank line and a specific topic for each subset.

My desired bibliography should look like this:

Literaturverzeichnis

CaptionSubset1
book1
book2

Caption Subset2
book3
article1

.
.
.

Answer 1

I did this by adding tags to the bibentries like this:

@book{Book1,
author = {John Doe},
title = {Hello World},
year = {2001},
keywords = {Caption1},
}

@book{Book2,
author = {Max Mustermann},
title = {This is only a test},
year = {2015},
keywords = {Caption2},
}

Then you should be able to do this:

\begin{document}

I am citing \cite{Book1} and \cite{Book2} in the text.

\printbibliography[keyword=Caption1, title={First Bibliography}]
\printbibliography[keyword=Caption2, title={Second Bibliography}]

\end{document}

and have as many mini-bibliographies according to your wishes. You will have to set keywords for every bibentry, though.

It will look like this:

I hope I could help!

Edit: as stated in the comments, the correct argument is keywords and not keyword. For adding the bibliography you have to specify e.g. keyword=Caption1, though.