Documentation/lei-overview.pod | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 Documentation/txt2pre          |  1 +
 MANIFEST                       |  1 +
 Makefile.PL                    |  2 +-

diff --git a/Documentation/lei-overview.pod b/Documentation/lei-overview.pod
new file mode 100644
index 0000000000000000000000000000000000000000..d190304569ec109682da526f64c2cc5705646eed
--- /dev/null
+++ b/Documentation/lei-overview.pod
@@ -0,0 +1,72 @@
+=head1 NAME
+
+lei - an overview of lei
+
+=head1 DESCRIPTION
+
+L<lei(1)> is a local email interface for public-inbox.  This document
+provides some basic examples.
+
+=head1 LEI STORE
+
+L<lei-init(1)> initializes writable local storage based on
+L<public-inbox-v2-format(5)>.
+
+TODO: Extend when lei-import and friends are added.
+
+=head1 EXTERNALS
+
+In addition to the above store, lei can make read-only queries to
+"externals": inboxes and external indices.  An external can be
+registered by passing a URL or local path to L<lei-add-external(1)>.
+For local paths, the external needs to be indexed with
+L<public-inbox-index(1)> (in the case of a regular inbox) or
+L<public-inbox-extindex(1)> (in the case of an external index).
+
+=head2 EXAMPLES
+
+=over
+
+=item $ lei add-external https://public-inbox.org/meta/
+
+Add a remote external for public-inbox's inbox.
+
+=back
+
+=head1 SEARCHING
+
+The L<lei-q(1)> command searches the local store and externals.  The
+search prefixes match those available via L<public-inbox-httpd(1)>.
+
+=head2 EXAMPLES
+
+=over
+
+=item $ lei q s:lei s:skeleton
+
+Search for messages whose subject includes "lei" and "skeleton".
+
+=item $ lei q -t s:lei s:skeleton
+
+Do the same, but also report unmatched messages that are in the same
+thread as a matched message.
+
+=item $ lei q -t -o t.mbox -f mboxcl2 --mua=mutt s:lei s:skeleton
+
+Write mboxcl2-formatted results to t.mbox and enter mutt to view the
+file by invoking C<mutt -f %f>.
+
+=back
+
+=head1 CONTACT
+
+Feedback welcome via plain-text mail to L<mailto:meta@public-inbox.org>
+
+The mail archives are hosted at L<https://public-inbox.org/meta/>
+and L<http://hjrcffqmbrq6wope.onion/meta/>
+
+=head1 COPYRIGHT
+
+Copyright 2021 all contributors L<mailto:meta@public-inbox.org>
+
+License: AGPL-3.0+ L<https://www.gnu.org/licenses/agpl-3.0.txt>
diff --git a/Documentation/txt2pre b/Documentation/txt2pre
index f69323e12ec10051b4335fef6bb36fbd911d45b2..604490ef2ee3d7d3219369faef060fd209e48c54 100755
--- a/Documentation/txt2pre
+++ b/Documentation/txt2pre
@@ -18,6 +18,7 @@ 	lei-daemon-pid(1)
 	lei-forget-external(1)
 	lei-init(1)
 	lei-ls-external(1)
+	lei-overview(7)
 	lei-q(1)
 	public-inbox.cgi(1)
 	public-inbox-compact(1)
diff --git a/MANIFEST b/MANIFEST
index 4d6f8b432f87975dc2d9807c974f32b8df576357..56fde540e54bec2c156e8fb1d1031dd52b5634d0 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -28,6 +28,7 @@ Documentation/lei-daemon-pid.pod
 Documentation/lei-forget-external.pod
 Documentation/lei-init.pod
 Documentation/lei-ls-external.pod
+Documentation/lei-overview.pod
 Documentation/lei-q.pod
 Documentation/lei.pod
 Documentation/marketing.txt
diff --git a/Makefile.PL b/Makefile.PL
index 7bfe1e4e960634ba74ca9ffea212440fca3a910b..f1910c47297e0c4107322f17e0c1a79bc04a0369 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -48,7 +48,7 @@ 	lei-add-external lei-config lei-daemon-kill lei-daemon-pid
 	lei-forget-external lei-init lei-ls-external lei-q)];
 $v->{-m5} = [ qw(public-inbox-config public-inbox-v1-format
 		public-inbox-v2-format public-inbox-extindex-format) ];
-$v->{-m7} = [ qw(public-inbox-overview public-inbox-tuning) ];
+$v->{-m7} = [ qw(lei-overview public-inbox-overview public-inbox-tuning) ];
 $v->{-m8} = [ qw(public-inbox-daemon) ];
 my @sections = (1, 5, 7, 8);
 $v->{check_80} = [];