diff --git a/bdb/README b/bdb/README
index ec34961..82fb715 100644
--- a/bdb/README
+++ b/bdb/README
@@ -1,4 +1,4 @@
-BDB library and utilities
+Boot Descriptor Block (BDB) library and utilities
 
 Building:
 ---------
diff --git a/firmware/README b/firmware/README
index 754edf1..3d174f7 100644
--- a/firmware/README
+++ b/firmware/README
@@ -1,6 +1,10 @@
 
 Here's what's what in the firmware/ directory.
 
+bdb/
+
+  Code for managing Boot Descriptor Blocks (BDB).
+
 include/
 lib/
 
diff --git a/firmware/bdb/README b/firmware/bdb/README
index ec34961..82fb715 100644
--- a/firmware/bdb/README
+++ b/firmware/bdb/README
@@ -1,4 +1,4 @@
-BDB library and utilities
+Boot Descriptor Block (BDB) library and utilities
 
 Building:
 ---------
diff --git a/futility/cmd_bdb.c b/futility/cmd_bdb.c
index efe041b..491f7cf 100644
--- a/futility/cmd_bdb.c
+++ b/futility/cmd_bdb.c
@@ -519,6 +519,8 @@
 {
 	printf("\nUsage: " MYNAME " %s <--create|--add|--resign|--verify>\n"
 	       "\n"
+	       "Utility for managing boot descriptor blocks (BDBs).\n"
+	       "\n"
 	       "For '--add <bdb_file> [OPTIONS]', required OPTIONS are:\n"
 	       "  --data <file>               Data to be added\n"
 	       "  --offset <offset>           Offset\n"
diff --git a/futility/cmd_show.c b/futility/cmd_show.c
index bfe668c..405ffb9 100644
--- a/futility/cmd_show.c
+++ b/futility/cmd_show.c
@@ -394,7 +394,7 @@
 	"\n"
 	"Where FILE could be\n"
 	"\n"
-	"  a BDB\n"
+	"  a boot descriptor block (BDB)\n"
 	"  a keyblock (.keyblock)\n"
 	"  a firmware preamble signature (VBLOCK_A/B)\n"
 	"  a firmware image (bios.bin)\n"