diff --git a/doc/RTD/source/Logger/index.rst b/doc/RTD/source/Logger/index.rst
new file mode 100644
index 0000000000000000000000000000000000000000..c9d8f376af37342397d3009ed6a94beaa28dfaad
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@@ -0,0 +1,16 @@
+Logger Output
+=============
+
+The logger is a particle based output (e.g. snapshot) that takes into account the large difference of timescale.
+If you have any question, a slack channel is available for it in SWIFT's slack.
+
+To run it, you will need to use the configuration option ``--enable-logger``.
+Currently the logger is implemented only for Gadget2 and the default gravity / stars, but can be easily extended to the other schemes by adding the logger structure to the particles (see ``src/hydro/Gadget2/hydro_part.h``).
+The main parameters of the logger are ``Logger:delta_step`` and ``Logger:index_mem_frac`` that define the time accuracy of the logger and the number of index files.
+The first parameter defines the number of active steps that a particle is doing before writing and the second defines the total storage size of the index files as function of the dump file.
+
+Unfortunately, the API is not really developed yet. Therefore if you wish to dump another field, you will need to trick the logger by replacing a field in the ``logger_log_part`` function.
+
+For reading, the python wrapper is available through the configuration option ``--with-python``. Once compiled, you will be able to use the file ``logger/examples/reader_example.py``.
+The first argument is the basename of the index file and the second one is the time requested.
+During the first reading, the library is manipulating the dump file and therefore it should not be killed and may take a bit more time than usual.
diff --git a/doc/RTD/source/index.rst b/doc/RTD/source/index.rst
index 28c8eba9a5a8b5a8169c55f84c557bd64aa3f768..6bc07cdf3a666cbf08cb56742c4a6928e40e07d6 100644
--- a/doc/RTD/source/index.rst
+++ b/doc/RTD/source/index.rst
@@ -30,3 +30,4 @@ difference is the parameter file that will need to be adapted for SWIFT.
    Task/index
    VELOCIraptorInterface/index
    AnalysisTools/index
+   Logger/index