diff --git a/doc/AIS-Reception.pdf b/doc/AIS-Reception.pdf
new file mode 100644
index 0000000..1148c9b
Binary files /dev/null and b/doc/AIS-Reception.pdf differ
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index bd2e5e3..d8b6343 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -4,6 +4,7 @@ install(FILES "${CUSTOM_DOC_DIR}/2400-4800-PSK-for-APRS-Packet-Radio.pdf" DESTIN
 install(FILES "${CUSTOM_DOC_DIR}/A-Better-APRS-Packet-Demodulator-Part-1-1200-baud.pdf" DESTINATION ${INSTALL_DOC_DIR})
 install(FILES "${CUSTOM_DOC_DIR}/A-Better-APRS-Packet-Demodulator-Part-2-9600-baud.pdf" DESTINATION ${INSTALL_DOC_DIR})
 install(FILES "${CUSTOM_DOC_DIR}/A-Closer-Look-at-the-WA8LMF-TNC-Test-CD.pdf" DESTINATION ${INSTALL_DOC_DIR})
+install(FILES "${CUSTOM_DOC_DIR}/AIS-Reception.pdf" DESTINATION ${INSTALL_DOC_DIR})
 install(FILES "${CUSTOM_DOC_DIR}/APRS-Telemetry-Toolkit.pdf" DESTINATION ${INSTALL_DOC_DIR})
 install(FILES "${CUSTOM_DOC_DIR}/APRStt-Implementation-Notes.pdf" DESTINATION ${INSTALL_DOC_DIR})
 install(FILES "${CUSTOM_DOC_DIR}/APRStt-interface-for-SARTrack.pdf" DESTINATION ${INSTALL_DOC_DIR})
diff --git a/doc/README.md b/doc/README.md
index ed42016..8cf0281 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -96,6 +96,11 @@ These dive into more detail for specialized topics or typical usage scenarios.
 
 	Why stop at 9600 baud?  Go faster if your soundcard and radio can handle it.
 
+- [**AIS Reception**](AIS-Reception.pdf) [ [*download*](../../../raw/dev/doc/AIS-Reception.pdf) ]
+
+
+	AIS is an international tracking system for ships.  Messages can contain position, speed, course, name, destination, status, vessel dimensions, and many other types of information.  Learn how to receive these signals with an ordindary ham transceiver and display the ship locations with APRS applications or [OpenCPN](https://opencpn.org).
+
 
 ## Miscellaneous ##