diff --git a/pkg.go b/pkg.go
index f8512ce..a177709 100644
--- a/pkg.go
+++ b/pkg.go
@@ -21,13 +21,15 @@ var (
 	baseDirLength int
 )
 
+// Init only works if called from the main package and sets the length of code base path
+// to later be removed in file paths to receive relative paths.
 func Init() {
 	_, file, _, _ := runtime.Caller(1)
 	dirBase := path.Dir(file)
 	baseDirLength = len(dirBase)
-	fmt.Printf("--\nDIR: %s\nBASE: %s\nLENGTH: %d\n--\n", file, dirBase, baseDirLength)
 }
 
+// SetLogCallback gives a possibility to automatically run code to handle any errors.
 func SetLogCallback(cbk LogCallback) {
 	logCallback = cbk
 }
@@ -38,6 +40,7 @@ func callback(wrapped Error) {
 	}
 }
 
+// Error implements the error inteface and adds filename and line to the error.
 func (wrapped Error) Error() string {
 	return fmt.Sprintf(
 		"[%s:%d] %s",
@@ -62,10 +65,12 @@ func create(err error) error {
 	return wrapped
 }
 
+// Wrap wraps an existing error with file and line.
 func Wrap(err error) error {
 	return create(err)
 }
 
+// New creates a new wrapped error with file and line.
 func New(msg string) error {
 	wrapped := create(errors.New(msg))
 	return wrapped