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diff --git a/design-documents/LICENSE b/design-documents/LICENSE
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--- /dev/null
+++ b/design-documents/LICENSE
@@ -0,0 +1,22 @@
+This work is licensed under the Creative Commons
+Attribution-ShareAlike 4.0 International License. To view a copy of
+this license, visit http://creativecommons.org/licenses/by-sa/4.0/ or
+send a letter to Creative Commons, PO Box 1866, Mountain View, CA
+94042, USA.
+
+Grant of Patent License. Subject to the terms and conditions of this
+license (both the Public License and this Patent License), each
+Licensor hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this
+section) patent license to make, have made, use, offer to sell, sell,
+import, and otherwise transfer the Licensed Material, where such
+license applies only to those patent claims licensable by such
+Licensor that are necessarily infringed by their contribution(s) alone
+or by combination of their contribution(s) with the Licensed Material
+to which such contribution(s) was submitted. If You institute patent
+litigation against any entity (including a cross-claim or counterclaim
+in a lawsuit) alleging that the Licensed Material or a contribution
+incorporated within the Licensed Material constitutes direct or
+contributory patent infringement, then any licenses granted to You
+under this license for that Licensed Material shall terminate as of
+the date such litigation is filed.
diff --git a/design-documents/README.md b/design-documents/README.md
new file mode 100644
index 00000000..41028ed1
--- /dev/null
+++ b/design-documents/README.md
@@ -0,0 +1,41 @@
+<div align="center">
+   <img src="Arm_logo_blue_RGB.svg" />
+</div>
+
+# Design Documents
+
+
+## About the documents in this folder
+
+This folder contains design documents for the ABI. The intention of
+the design documents is to provide rationale and background for the
+individual ABI documents. Nothing written in a design document is
+normative, and if there is any disagreement with one of the main
+specification documents then the specification takes precedence.
+
+## About the license
+
+As identified more fully in the [LICENSE](LICENSE) file, this project
+is licensed under CC-BY-SA-4.0 along with an additional patent
+license.  The language in the additional patent license is largely
+identical to that in Apache-2.0 (specifically, Section 3 of Apache-2.0
+as reflected at https://www.apache.org/licenses/LICENSE-2.0) with two
+exceptions.
+
+First, several changes were made related to the defined terms so as to
+reflect the fact that such defined terms need to align with the
+terminology in CC-BY-SA-4.0 rather than Apache-2.0 (e.g., changing
+“Work” to “Licensed Material”).
+
+Second, the defensive termination clause was changed such that the
+scope of defensive termination applies to “any licenses granted to
+You” (rather than “any patent licenses granted to You”).  This change
+is intended to help maintain a healthy ecosystem by providing
+additional protection to the community against patent litigation
+claims.
+
+## Defects report
+
+Please report defects in any of the design documents to the [issue
+tracker page on
+GitHub](https://github.com/ARM-software/abi-aa/issues).