diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..4cc617e
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,29 @@
+Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Celestino Amoroso, nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
diff --git a/file-util.go b/file-util.go
index c6fb788..069d8a6 100644
--- a/file-util.go
+++ b/file-util.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // file_util.go
 package utils
 
diff --git a/gzip-util.go b/gzip-util.go
index a39ed49..81889c9 100644
--- a/gzip-util.go
+++ b/gzip-util.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // gzip-util.go
 package utils
 
diff --git a/misc-util.go b/misc-util.go
index 2a85d1a..1ea4458 100644
--- a/misc-util.go
+++ b/misc-util.go
@@ -1,3 +1,7 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// misc-utis.go
 package utils
 
 import (
diff --git a/os-util.go b/os-util.go
index 53d020c..228388c 100644
--- a/os-util.go
+++ b/os-util.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // os-util.go
 package utils
 
diff --git a/string.go b/string.go
index e5f1889..4dd90b0 100644
--- a/string.go
+++ b/string.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // string
 package utils
 
diff --git a/text-util.go b/text-util.go
index 96e76c9..653f532 100644
--- a/text-util.go
+++ b/text-util.go
@@ -1,3 +1,6 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
 // text-util.go
 package utils
 
diff --git a/time.go b/time.go
index 70822be..009b045 100644
--- a/time.go
+++ b/time.go
@@ -1,3 +1,7 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// time.go
 package utils
 
 import (
diff --git a/tty-util.go b/tty-util.go
index a7eff9e..446d567 100644
--- a/tty-util.go
+++ b/tty-util.go
@@ -1,3 +1,7 @@
+// Copyright (c) 2024 Celestino Amoroso (celestino.amoroso@gmail.com).
+// All rights reserved.
+
+// tty-utils.go
 package utils
 
 import (