diff --git a/libfreefare/freefare.c b/libfreefare/freefare.c
index e29a219..3ca16c4 100644
--- a/libfreefare/freefare.c
+++ b/libfreefare/freefare.c
@@ -215,7 +215,7 @@ freefare_free_tag (MifareTag tag)
 const char *
 freefare_strerror (MifareTag tag)
 {
-    const char *p = "Unkown error";
+    const char *p = "Unknown error";
     if (nfc_device_get_last_error (tag->device) < 0) {
       p = nfc_strerror (tag->device);
     } else {
diff --git a/libfreefare/freefare_error.3 b/libfreefare/freefare_error.3
index 3232847..816152b 100644
--- a/libfreefare/freefare_error.3
+++ b/libfreefare/freefare_error.3
@@ -103,7 +103,7 @@ function returns the error code returned by the last command run on
 .Fn freefare_strerror
 returns the error message,
 .Fn freefare_strerror_r
-returns 0 on success, -1 on failure;
+returns 0 on success, \-1 on failure;
 .Fn mifare_desfire_last_pcd_error
 and
 .Fn mifare_desfire_last_picc_error
diff --git a/libfreefare/mifare_application.3 b/libfreefare/mifare_application.3
index f4bdb62..e9ba71b 100644
--- a/libfreefare/mifare_application.3
+++ b/libfreefare/mifare_application.3
@@ -101,7 +101,7 @@ on the
 .Vt tag
 and copy them into
 .Vt buf.
-The function returns the amount of data it copied, or -1 on error.
+The function returns the amount of data it copied, or \-1 on error.
 .Pp
 The
 .Fn mifare_application_write
@@ -115,7 +115,7 @@ on the
 .Vt mad
 of the
 .Vt tag
-and returns the quantity of data written, or -1 on error.
+and returns the quantity of data written, or \-1 on error.
 .\"  ___                 _                           _        _   _                           _            
 .\" |_ _|_ __ ___  _ __ | | ___ _ __ ___   ___ _ __ | |_ __ _| |_(_) ___  _ __    _ __   ___ | |_ ___  ___ 
 .\"  | || '_ ` _ \| '_ \| |/ _ \ '_ ` _ \ / _ \ '_ \| __/ _` | __| |/ _ \| '_ \  | '_ \ / _ \| __/ _ \/ __|
diff --git a/libfreefare/mifare_classic.3 b/libfreefare/mifare_classic.3
index 4905c62..4a8b769 100644
--- a/libfreefare/mifare_classic.3
+++ b/libfreefare/mifare_classic.3
@@ -145,7 +145,7 @@ Value-blocks can be easily accessed using the
 .Fn mifare_classic_read_value
 and
 .Fn mifare_classic_init_value
-functions. Aditional functions are available for such
+functions. Additional functions are available for such
 .Vt blocks :
 .Fn mifare_classic_increment
 and
diff --git a/libfreefare/mifare_desfire.3 b/libfreefare/mifare_desfire.3
index 33ff039..5850685 100644
--- a/libfreefare/mifare_desfire.3
+++ b/libfreefare/mifare_desfire.3
@@ -274,7 +274,7 @@ of the free memory on the PICC (in bytes).
 .Pp
 The
 .Fn mifare_desfire_set_configuration
-function can be used to desactivate the format function when setting
+function can be used to deactivate the format function when setting
 .Vt disable_format
 to a value different from 0, or swicth the card to use random UDI setting
 .Vt enable_random_uid
@@ -404,7 +404,7 @@ The
 .Fn mifare_desfire_create_application_iso
 acts as the
 .Fn mifare_desfire_create_application
-function but allows to specify if the created files within the application shall have an ISO file identifier setting
+function but allows one to specify if the created files within the application shall have an ISO file identifier setting
 .Vt want_iso_file_identifiers
 to a non-NULL value, a DF can be provided using
 .Vt iso_file_id ,
diff --git a/libfreefare/mifare_desfire_aid.3 b/libfreefare/mifare_desfire_aid.3
index ad37041..b649b32 100644
--- a/libfreefare/mifare_desfire_aid.3
+++ b/libfreefare/mifare_desfire_aid.3
@@ -60,9 +60,7 @@ Mifare card manipulation library (libfreefare, \-lfreefare)
 .Sh DESCRIPTION
 The
 .Fn mifare_desfire_aid_*
-functions allows management of Mifare DESFire AIDs.
-.Fn
-The
+functions allows management of Mifare DESFire AIDs. The
 .Fn mifare_desfire_aid_new
 function returns a new Mifare DESFire AID of value
 .Vt aid .
@@ -71,8 +69,8 @@ The
 .Fn mifare_desfire_aid_new_with_mad_aid
 functions returns a new Mifare DESFire AID using a Mifare Classic AID
 .Vt mad_aid
-and
-.Vt
+and 
+.Vt n
 as the last nibble of the new AID.
 .Pp
 Both