diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..265c337
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,28 @@
+# C++ objects and libs
+*.slo
+*.lo
+*.o
+*.a
+*.la
+*.lai
+*.so
+*.dll
+*.dylib
+
+# cmake
+
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+
+# git 
+*.orig
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..fcc07f9
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,47 @@
+if(DEFINED CRC_LIBRARY)
+  return()
+else()
+  set(CRC_LIBRARY 1)
+endif()
+
+project(crc)
+
+if(TARGET ${PROJECT_NAME})
+  message("The ${PROJECT_NAME} arledy included in main Project")
+  return()
+endif()
+
+cmake_minimum_required(VERSION 3.1)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+option(BUILD_SHARED_LIBS "Enable or disable shared libraries" OFF)
+option(CRC_TESTS "Enable tests of the ${PROJECT_NAME} library" OFF)
+
+file(GLOB SOURCE_CPP
+    "crc/*.h"
+    "crc/*.cpp"
+    "crc/*.c"
+)
+
+add_library(${PROJECT_NAME} ${SOURCE_CPP})
+target_include_directories(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_LIST_DIR})
+
+
+if (CRC_TESTS)
+
+    file(GLOB SOURCE_CPP_TEST
+        "unit-test/*.h"
+        "unit-test/*.cpp"
+        "unit-test/*.c"
+
+        "unit-test/ut/*.h"
+        "unit-test/ut/*.cpp"
+        "unit-test/ut/*.c"
+    )
+
+    add_executable(${PROJECT_NAME}_test ${SOURCE_CPP_TEST})
+    target_link_libraries(${PROJECT_NAME}_test PUBLIC ${PROJECT_NAME})
+
+endif()
diff --git a/README.md b/README.md
index feb263b..33a2269 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,39 @@
 # crc
   crc16/crc32/crc64
+
+## Build
+
+``` bash
+git clone https://github.com/gityf/crc.git
+mkdir build
+cd build
+cmake .. -DBUILD_SHARED_LIBS=1 -DCRC_TESTS=1
+make 
+```
+
+## Testing
+
+``` bash
+./crc_test 
+[ RUN      ] ==== Test CRC8Test.BasicTest
+[ RUN      ] ==== Test CRC16Test.BasicTest
+[ RUN      ] ==== Test CRC32Test.BasicTest
+[ RUN      ] ==== Test CRC64Test.BasicTest
+[ RUN      ] ==== Test CRC8PolyTest.BasicTest
+[ RUN      ] ==== Test CRC16PolyTest.BasicTest
+[ RUN      ] ==== Test CRC32PolyTest.BasicTest
+[ PASS     ] ==== PASSED 7 tests
+[ NOPASS   ] ==== ERROR 0 tests
+
+```
+
+## Include 
+
+### Cmake build system 
+
+``` cmake
+add_subdirectory(crc)
+
+target_link_libraries(${PROJECT_NAME} PUBLIC crc)
+
+```