diff --git a/cmd/processor_rot13-encode.go b/cmd/processor_rot13.go
similarity index 77%
rename from cmd/processor_rot13-encode.go
rename to cmd/processor_rot13.go
index 765eec5..2b05cc4 100644
--- a/cmd/processor_rot13-encode.go
+++ b/cmd/processor_rot13.go
@@ -12,13 +12,13 @@ import (
 )
 
 func init() {
-	rootCmd.AddCommand(rot13EncodeCmd)
+	rootCmd.AddCommand(rot13Cmd)
 }
 
-var rot13EncodeCmd = &cobra.Command{
-	Use:     "rot13-encode [string]",
-	Short:   "Encode your text to ROT13",
-	Aliases: []string{"rot13", "rot13-enc"},
+var rot13Cmd = &cobra.Command{
+	Use:     "rot13 [string]",
+	Short:   "Cipher/Decipher your text with ROT13 letter substitution",
+	Aliases: []string{"rot13-encode", "rot13-enc"},
 	Args:    cobra.MaximumNArgs(1),
 	RunE: func(cmd *cobra.Command, args []string) error {
 		var err error
@@ -40,7 +40,7 @@ var rot13EncodeCmd = &cobra.Command{
 		}
 
 		flags := make([]processors.Flag, 0)
-		p := processors.ROT13Encode{}
+		p := processors.ROT13{}
 
 		out, err = p.Transform(in, flags...)
 		if err != nil {
diff --git a/processors/processor.go b/processors/processor.go
index 61718d2..7cb4fe7 100644
--- a/processors/processor.go
+++ b/processors/processor.go
@@ -48,7 +48,7 @@ var List = []list.Item{
 	Reverse{},
 	ReverseLines{},
 	ReverseLines{},
-	ROT13Encode{},
+	ROT13{},
 	SHA1{},
 	SHA224{},
 	SHA256{},
diff --git a/processors/rot.go b/processors/rot13.go
similarity index 51%
rename from processors/rot.go
rename to processors/rot13.go
index 6287f26..96e5cdb 100644
--- a/processors/rot.go
+++ b/processors/rot13.go
@@ -5,35 +5,36 @@ import (
 	"strings"
 )
 
-// ROT13Encode converts string to ROT13 encoding.
-type ROT13Encode struct{}
+// ROT13 converts string with ROT13 cypher.
+// https://en.wikipedia.org/wiki/ROT13
+type ROT13 struct{}
 
-func (p ROT13Encode) Name() string {
-	return "rot13-encode"
+func (p ROT13) Name() string {
+	return "rot13"
 }
 
-func (p ROT13Encode) Alias() []string {
-	return []string{"rot13", "rot13-enc"}
+func (p ROT13) Alias() []string {
+	return []string{"rot13-encode", "rot13-enc"}
 }
 
-func (p ROT13Encode) Transform(data []byte, _ ...Flag) (string, error) {
+func (p ROT13) Transform(data []byte, _ ...Flag) (string, error) {
 	return strings.Map(rot13, string(data)), nil
 }
 
-func (p ROT13Encode) Flags() []Flag {
+func (p ROT13) Flags() []Flag {
 	return nil
 }
 
-func (p ROT13Encode) Title() string {
-	title := "ROT13 Encode"
+func (p ROT13) Title() string {
+	title := "ROT13 Letter Substitution"
 	return fmt.Sprintf("%s (%s)", title, p.Name())
 }
 
-func (p ROT13Encode) Description() string {
-	return "Encode your text to ROT13"
+func (p ROT13) Description() string {
+	return "Cipher/Decipher your text with ROT13 letter substitution"
 }
 
-func (p ROT13Encode) FilterValue() string {
+func (p ROT13) FilterValue() string {
 	return p.Title()
 }
 
diff --git a/processors/rot_test.go b/processors/rot13_test.go
similarity index 84%
rename from processors/rot_test.go
rename to processors/rot13_test.go
index 6810901..2d3c693 100644
--- a/processors/rot_test.go
+++ b/processors/rot13_test.go
@@ -5,7 +5,7 @@ import (
 	"testing"
 )
 
-func TestROT13Encode_Transform(t *testing.T) {
+func TestROT13_Transform(t *testing.T) {
 	type args struct {
 		data []byte
 		in1  []Flag
@@ -36,7 +36,7 @@ func TestROT13Encode_Transform(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			p := ROT13Encode{}
+			p := ROT13{}
 			got, err := p.Transform(tt.args.data, tt.args.in1...)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("Transform() error = %v, wantErr %v", err, tt.wantErr)
@@ -49,7 +49,7 @@ func TestROT13Encode_Transform(t *testing.T) {
 	}
 }
 
-func TestROT13Encode_Command(t *testing.T) {
+func TestROT13_Command(t *testing.T) {
 	test := struct {
 		alias       []string
 		description string
@@ -58,14 +58,14 @@ func TestROT13Encode_Command(t *testing.T) {
 		name        string
 		title       string
 	}{
-		alias:       []string{"rot13", "rot13-enc"},
-		description: "Encode your text to ROT13",
-		filterValue: "ROT13 Encode (rot13-encode)",
+		alias:       []string{"rot13-encode", "rot13-enc"},
+		description: "Cipher/Decipher your text with ROT13 letter substitution",
+		filterValue: "ROT13 Letter Substitution (rot13)",
 		flags:       nil,
-		name:        "rot13-encode",
-		title:       "ROT13 Encode (rot13-encode)",
+		name:        "rot13",
+		title:       "ROT13 Letter Substitution (rot13)",
 	}
-	p := ROT13Encode{}
+	p := ROT13{}
 	if got := p.Alias(); !reflect.DeepEqual(got, test.alias) {
 		t.Errorf("Alias() = %v, want %v", got, test.alias)
 	}