diff --git a/pySim/cards.py b/pySim/cards.py
index 8489c97..5a39bda 100644
--- a/pySim/cards.py
+++ b/pySim/cards.py
@@ -94,7 +94,7 @@
 		in ETSI TS 151 011 for the details of the access_tech field coding.
 		Some common values:
 		access_tech = '0080' # Only GSM is selected
-		access_tech = 'FFFF' # All technologues selected, even Reserved for Future Use ones
+		access_tech = 'FFFF' # All technologies selected, even Reserved for Future Use ones
 		"""
 		# get size and write EF.HPLMNwAcT
 		data = self._scc.read_binary(EF['HPLMNwAcT'], length=None, offset=0)
@@ -476,7 +476,7 @@
 	each possible provider uses a specific record number in each EF. The
 	indexes used are ( where N is the number of providers supported ) :
 	 - [2 .. N+1] for the operator name
-	 - [1 .. N] for the programable EFs
+	 - [1 .. N] for the programmable EFs
 
 	* 3f00/7f4d/8f0c : Operator Name
 
@@ -618,7 +618,7 @@
 class FakeMagicSim(Card):
 	"""
 	Theses cards have a record based EF 3f00/000c that contains the provider
-	informations. See the program method for its format. The records go from
+	information. See the program method for its format. The records go from
 	1 to N.
 	"""
 
diff --git a/pySim/filesystem.py b/pySim/filesystem.py
index 49520c3..36588e2 100644
--- a/pySim/filesystem.py
+++ b/pySim/filesystem.py
@@ -53,7 +53,7 @@
             fid : File Identifier (4 hex digits)
             sfid : Short File Identifier (2 hex digits, optional)
             name : Brief name of the file, lik EF_ICCID
-            desc : Descriptoin of the file
+            desc : Description of the file
             parent : Parent CardFile object within filesystem hierarchy
         """
         if not isinstance(self, CardADF) and fid == None:
@@ -387,7 +387,7 @@
 
     @with_default_category('Transparent EF Commands')
     class ShellCommands(CommandSet):
-        """Shell commands specific for Trransparent EFs."""
+        """Shell commands specific for transparent EFs."""
         def __init__(self):
             super().__init__()
 
@@ -462,7 +462,7 @@
             fid : File Identifier (4 hex digits)
             sfid : Short File Identifier (2 hex digits, optional)
             name : Brief name of the file, lik EF_ICCID
-            desc : Descriptoin of the file
+            desc : Description of the file
             parent : Parent CardFile object within filesystem hierarchy
             size : tuple of (minimum_size, recommended_size)
         """
@@ -686,7 +686,7 @@
             fid : File Identifier (4 hex digits)
             sfid : Short File Identifier (2 hex digits, optional)
             name : Brief name of the file, lik EF_ICCID
-            desc : Descriptoin of the file
+            desc : Description of the file
             parent : Parent CardFile object within filesystem hierarchy
             rec_len : tuple of (minimum_length, recommended_length)
         """
@@ -808,8 +808,8 @@
         Args:
             fid : File Identifier (4 hex digits)
             sfid : Short File Identifier (2 hex digits, optional)
-            name : Brief name of the file, lik EF_ICCID
-            desc : Descriptoin of the file
+            name : Brief name of the file, like EF_ICCID
+            desc : Description of the file
             parent : Parent CardFile object within filesystem hierarchy
             rec_len : Length of the fixed-length records within transparent EF
             size : tuple of (minimum_size, recommended_size)
@@ -991,7 +991,7 @@
         or the underlying card profile.
 
         Args:
-            sw : Status word as string of 4 hexd digits
+            sw : Status word as string of 4 hex digits
 
         Returns:
             Tuple of two strings
@@ -1026,9 +1026,9 @@
             f = CardDF(fid=fid, sfid=None, name="DF." + str(fid).upper(), desc="dedicated file, manually added at runtime")
         else:
             if (select_resp['file_descriptor']['structure'] == 'transparent'):
-                f = TransparentEF(fid=fid, sfid=None, name="EF." + str(fid).upper(), desc="elementry file, manually added at runtime")
+                f = TransparentEF(fid=fid, sfid=None, name="EF." + str(fid).upper(), desc="elementary file, manually added at runtime")
             else:
-                f = LinFixedEF(fid=fid, sfid=None, name="EF." + str(fid).upper(), desc="elementry file, manually added at runtime")
+                f = LinFixedEF(fid=fid, sfid=None, name="EF." + str(fid).upper(), desc="elementary file, manually added at runtime")
 
         self.selected_file.add_files([f])
         self.selected_file = f
@@ -1223,7 +1223,7 @@
         """Interpret a given status word within the application.
 
         Args:
-            sw : Status word as string of 4 hexd digits
+            sw : Status word as string of 4 hex digits
 
         Returns:
             Tuple of two strings
@@ -1231,7 +1231,7 @@
         return interpret_sw(self.sw, sw)
 
 class CardProfile(object):
-    """A Card Profile describes a card, it's filessystem hierarchy, an [initial] list of
+    """A Card Profile describes a card, it's filesystem hierarchy, an [initial] list of
        applications as well as profile-specific SW and shell commands.  Every card has
        one card profile, but there may be multiple applications within that profile."""
     def __init__(self, name, **kw):
@@ -1265,7 +1265,7 @@
         """Interpret a given status word within the profile.
 
         Args:
-            sw : Status word as string of 4 hexd digits
+            sw : Status word as string of 4 hex digits
 
         Returns:
             Tuple of two strings
diff --git a/pySim/ts_31_102.py b/pySim/ts_31_102.py
index 1558d8d..1a78a12 100644
--- a/pySim/ts_31_102.py
+++ b/pySim/ts_31_102.py
@@ -471,14 +471,14 @@
 
 # TS 31.102 Section 4.2.17
 class EF_LOCI(TransparentEF):
-    def __init__(self, fid='6f7e', sfid=0x0b, name='EF.LOCI', desc='Locationn information', size={11,11}):
+    def __init__(self, fid='6f7e', sfid=0x0b, name='EF.LOCI', desc='Location information', size={11,11}):
         super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size)
         self._construct = Struct('tmsi'/HexAdapter(Bytes(4)), 'lai'/HexAdapter(Bytes(5)), 'rfu'/Int8ub,
                                  'lu_status'/Int8ub)
 
 # TS 31.102 Section 4.2.23
 class EF_PSLOCI(TransparentEF):
-    def __init__(self, fid='6f73', sfid=0x0c, name='EF.PSLOCI', desc='PS Locationn information', size={14,14}):
+    def __init__(self, fid='6f73', sfid=0x0c, name='EF.PSLOCI', desc='PS Location information', size={14,14}):
         super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size)
         self._construct = Struct('ptmsi'/HexAdapter(Bytes(4)), 'ptmsi_sig'/HexAdapter(Bytes(3)),
                                  'rai'/HexAdapter(Bytes(6)), 'rau_status'/Int8ub)
diff --git a/pySim/ts_31_103.py b/pySim/ts_31_103.py
index effdbf7..cea4832 100644
--- a/pySim/ts_31_103.py
+++ b/pySim/ts_31_103.py
@@ -126,7 +126,7 @@
 
 # TS 31.103 Section 4.2.9
 class EF_GBABP(TransparentEF):
-    def __init__(self, fid='6fd5', sfid=None, name='EF.GBABP', desc='GBA Bootstrappng'):
+    def __init__(self, fid='6fd5', sfid=None, name='EF.GBABP', desc='GBA Bootstrapping'):
         super().__init__(fid=fid, sfid=sfid, name=name, desc=desc)
 
 # TS 31.103 Section 4.2.10
diff --git a/pySim/ts_51_011.py b/pySim/ts_51_011.py
index 5795faf..c21e86c 100644
--- a/pySim/ts_51_011.py
+++ b/pySim/ts_51_011.py
@@ -423,7 +423,7 @@
 # TS 51.011 Section 10.5.16
 class EF_CMI(LinFixedEF):
     def __init__(self, fid='6f58', sfid=None, name='EF.CMI', rec_len={2,21},
-                 desc='Comparison Method Informatoin'):
+                 desc='Comparison Method Information'):
         super().__init__(fid, sfid=sfid, name=name, desc=desc, rec_len=rec_len)
         self._construct = Struct('alpha_id'/Bytes(this._.total_len-1), 'comparison_method_id'/Int8ub)
 
@@ -871,7 +871,7 @@
         ret['file_characteristics'] = b2h(resp_bin[13])
         ret['num_direct_child_df'] = int(resp_bin[14], 16)
         ret['num_direct_child_ef'] = int(resp_bin[15], 16)
-        ret['num_chv_unbkock_adm_codes'] = int(resp_bin[16])
+        ret['num_chv_unblock_adm_codes'] = int(resp_bin[16])
         # CHV / UNBLOCK CHV stats
     elif file_type in ['working_ef']:
         file_struct = struct_of_file_map[resp_bin[13]] if resp_bin[13] in struct_of_file_map else resp_bin[13]
diff --git a/pySim/utils.py b/pySim/utils.py
index 5f66170..a0da03a 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -111,7 +111,7 @@
 	return ei
 
 def dec_imsi(ef:Hexstr) -> Optional[str]:
-	"""Converts an EF value to the imsi string representation"""
+	"""Converts an EF value to the IMSI string representation"""
 	if len(ef) < 4:
 		return None
 	l = int(ef[0:2], 16) * 2		# Length of the IMSI string