diff --git a/.gitignore b/.gitignore
index cd34f1061..26dbcda73 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 /python/ray/core
 /python/ray/pickle5_files/
 /python/ray/thirdparty_files/
+/python/ray/pyarrow_files/
 /python/ray/jars/
 /python/build
 /python/dist
diff --git a/doc/source/images/scikit.png b/doc/source/images/scikit.png
new file mode 100644
index 000000000..e2a646546
Binary files /dev/null and b/doc/source/images/scikit.png differ
diff --git a/doc/source/ray-libraries.rst b/doc/source/ray-libraries.rst
index 5d24a1b0a..1495bcaa6 100644
--- a/doc/source/ray-libraries.rst
+++ b/doc/source/ray-libraries.rst
@@ -96,6 +96,13 @@ Alibi is an open source Python library aimed at machine learning model inspectio
 
 GitHub: `https://github.com/SeldonIO/alibi <https://github.com/SeldonIO/alibi>`__
 
+Scikit Learn |scikit|
+---------------------
+
+Scikit-learn is a free software machine learning library for the Python programming language. It features various classification, regression and clustering algorithms including support vector machines, random forests, gradient boosting, k-means and DBSCAN, and is designed to interoperate with the Python numerical and scientific libraries NumPy and SciPy.
+
+[`Link to integration <https://docs.ray.io/en/master/joblib.html>`__]
+
 Spacy |spacy|
 -------------
 spaCy is a library for advanced Natural Language Processing in Python and Cython. It's built on the very latest research, and was designed from day one to be used in real products.
@@ -142,6 +149,10 @@ spaCy is a library for advanced Natural Language Processing in Python and Cython
     :class: inline-figure
     :height: 30
 
+.. |scikit| image:: images/scikit.png
+    :class: inline-figure
+    :height: 30
+
 .. |seldon| image:: images/seldon.png
     :class: inline-figure
     :height: 30