diff --git a/README.md b/README.md
index 40f02b0..ebd1508 100644
--- a/README.md
+++ b/README.md
@@ -34,32 +34,33 @@ func Tracem(e error, message string) error
 func Tracef(e error, format string, args ...interface{}) error
 ```
 
-Additionally, we provide a package called e2hformat in order to get the error information, over different formats
-Currently, 
+Additionally, we provide a package called **e2hformat** in order to retrieve the error information, over different formats.
+
+To starters, you must call the `NewFormatter(format Format) (Formatter, error)` function, indicating the desired format, to get the instance of this type.
+
 ```go
 type Formatter interface {
+	// This function returns an string containing the description of the very first error in the stack
 	Source(err error) string
-	Format(err error, params Params) string
-}
 
-type Params struct {
-	Beautify         bool
-	InvertCallstack  bool
-	PathHidingMethod HidingMethod
-	PathHidingValue  string
+	// This function returns the error stack information 
+	Format(err error, params Params) string
 }
-
-
-// This function returns an string containing the description of the very first error in the stack
-func Source(err error) string 
-
-// This function returns the error stack information in a JSON format
-func FormatJSON(err error, rootFolder2Show string, indented bool) []byte
-
-// This function returns the error stack information in a pretty format
-func FormatPretty(err error, rootFolder2Show string) string 
 ```
 
+Currently allowed formats:
+- **Format_Raw**: Non-hierarchical text format, with some decorators to get it human readable
+- **Format_JSON**: JSON standard format
+
+Once you have the formatter, you could change some details of output style modifying the values of the Params struct, 
+according to the following table:
+| Param | Definition | Allowed values  | Default value  |
+|---|---|---|---|
+| Beautify | Sets if the output will be beautified | True / False  | False |
+| InvertCallstack | Sets if shows the last call or the origin error first | True (last call first) / False (origin error first) | False |
+| PathHidingMethod | Sets the way in with the filepaths are managed  | HidingMethod_None / HidingMethod_FullBaseline /  HidingMethod_ToFolder | HidingMethod_None |
+| PathHidingValue | Value to use, according to the selected 'PathHidingMethod' | A DirPath string | "" |
+
 ## Usage
 
 The use of this module is very simple, as you may see:
diff --git a/formatter/formatterFactory.go b/formatter/formatterFactory.go
index cc781d9..85d4c11 100644
--- a/formatter/formatterFactory.go
+++ b/formatter/formatterFactory.go
@@ -8,18 +8,17 @@ import (
 	"strings"
 )
 
-// Level defines log levels.
 type Format int8
-type HidingMethod int8
 
+// Allowed output formats.
 const (
-	// Disabled disables the logger.
 	Format_Raw Format = iota
-
-	// Mensajes de muy baja frecuencia que se deben mostrar siempre (como el copyright)
 	Format_JSON
 )
 
+type HidingMethod int8
+
+//Allowed path treatments
 const (
 	HidingMethod_None HidingMethod = iota
 
@@ -29,10 +28,14 @@ const (
 )
 
 type Params struct {
-	Beautify         bool
-	InvertCallstack  bool
+	//Sets if the output will be beautified
+	Beautify bool
+	//Sets if at top of the stack shows the last trace (invert = true) or the origin error (invert = false)
+	InvertCallstack bool
+	//Sets the way in with the filepaths are managed.
 	PathHidingMethod HidingMethod
-	PathHidingValue  string
+	//Value to use, according to the selected 'PathHidingMethod'
+	PathHidingValue string
 }
 
 type Formatter interface {