diff --git a/doc/mainpage.txt b/doc/mainpage.txt
index 275369548..3255b61ac 100644
--- a/doc/mainpage.txt
+++ b/doc/mainpage.txt
@@ -35,6 +35,17 @@
 
 \mainpage SPDK Documentation
 
+\section intro Storage Performance Development Kit
+
+- <a href="https://github.com/spdk/spdk">SPDK on GitHub</a>
+- <a href="http://www.spdk.io/">SPDK.io</a>
+
+The Storage Performance Development Kit (SPDK) provides a set of tools and libraries
+for writing high performance, scalable, user-mode storage applications.
+It achieves high performance by moving all of the necessary drivers
+into userspace and operating in a polled mode instead of relying on interrupts,
+which avoids kernel context switches and eliminates interrupt handling overhead.
+
 \section modules Modules
 
 - \ref nvme