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+# Convention Used in This Book
+
+`code block or value`
+  - Used for variable, function or menu names in MISP.
+
+## Example Organisations
+
+As MISP is a platform to support information sharing, example organisations are often used within this book.
+
+A set of users and organisations are used in the different examples.
+
+The following two organisations are regularly used as example:
+
+- Setec Astrononomy with UUID `58d38339-7b24-4386-b4b4-4c0f950d210f`
+- Acme Finance with UUID `58d38326-eda8-443a-9fa8-4e12950d210f`
+
+Starting from MISP 2.4.71, the example organisations with the above mentioned UUID are black-listed to avoid
+large distribution of sample events while testing a MISP instance. If you want to test your distribution, the
+sample organisation black-listing can be removed in `Administration` under `Manage Org Blacklists`.