diff --git a/a-data-collection/exercise1.ipynb b/data-collection/exercise1.ipynb similarity index 100% rename from a-data-collection/exercise1.ipynb rename to data-collection/exercise1.ipynb diff --git a/a-data-collection/exercise2.ipynb b/data-collection/exercise2.ipynb similarity index 100% rename from a-data-collection/exercise2.ipynb rename to data-collection/exercise2.ipynb diff --git a/a-data-collection/exercise3.ipynb b/data-collection/exercise3.ipynb similarity index 100% rename from a-data-collection/exercise3.ipynb rename to data-collection/exercise3.ipynb diff --git a/a-data-collection/exercise4.png b/data-collection/exercise4.png similarity index 100% rename from a-data-collection/exercise4.png rename to data-collection/exercise4.png diff --git a/a-data-collection/exercise5.png b/data-collection/exercise5.png similarity index 100% rename from a-data-collection/exercise5.png rename to data-collection/exercise5.png diff --git a/b-link-analysis/floyd.py b/link-analysis/floyd.py similarity index 100% rename from b-link-analysis/floyd.py rename to link-analysis/floyd.py diff --git a/b-link-analysis/preprocess.py b/link-analysis/preprocess.py similarity index 100% rename from b-link-analysis/preprocess.py rename to link-analysis/preprocess.py diff --git a/b-link-analysis/to_complete.py b/link-analysis/to_complete.py similarity index 100% rename from b-link-analysis/to_complete.py rename to link-analysis/to_complete.py