diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7bd467c..78d0e43 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,6 +28,9 @@ set(CMAKE_CXX_STANDARD 20)
 
 add_executable(Compiler
         src/ELF.cpp include/ELF.h
+        src/ELF64_Section.cpp include/ELF64_Section.h
+        src/ELF64_Program.cpp include/ELF64_Program.h
+        src/ELF64.cpp include/ELF64.h
         src/main.cpp
 )
 
diff --git a/include/ELF64.h b/include/ELF64.h
new file mode 100644
index 0000000..3fc2594
--- /dev/null
+++ b/include/ELF64.h
@@ -0,0 +1,95 @@
+#pragma once
+
+#include "ELF64_Section.h"
+#include "ELF64_Program.h"
+
+#include <ehs/Serializer.h>
+
+/// Architecture's memory bit-depth.
+#define ELFH_ARCH_32 0x01
+#define ELFH_ARCH_64 0x02
+
+/// Architecture's endianness.
+#define ELFH_END_LE 0x01
+#define ELFH_END_BE 0x02
+
+/// OS' ABI Types.
+#define ELFH_ABI_SYSTEMV 0x00
+
+/// ELF Binary Types.
+#define ELFH_TYPE_EXEC 0x02
+#define ELFH_TYPE_DYN 0x03
+
+/// Machine architectures.
+#define ELFH_MARCH_AMD_X86_64 0x003E
+
+/// Program types.
+#define PRGH_TYPE_LOAD 0x00000001
+
+/// Program flags.
+#define PRGH_FLAG_EXEC 0x00000001
+#define PRGH_FLAG_WRITE 0x00000002
+#define PRGH_FLAG_READ 0x00000004
+
+/// Section types.
+#define SECH_TYPE_NULL 0x00
+#define SECH_TYPE_PROGBITS 0x01
+#define SECH_TYPE_STRTAB 0x03
+
+/// Section flags.
+#define SECH_FLAG_ALLOC 0x02
+#define SECH_FLAG_EXEC 0x04
+#define SECH_FLAG_STRINGS 0x20
+
+/// True header sizes.
+#define ELFH_SIZE 64
+#define PRGH_SIZE 56
+#define SECH_SIZE 64
+
+class ELF64
+{
+private:
+	ehs::UInt_8 subArch;
+	ehs::UInt_8 endianness;
+	ehs::UInt_8 elfV1;
+	ehs::UInt_8 targetABI;
+	ehs::UInt_8 abiV;
+	ehs::UInt_16 type;
+	ehs::UInt_16 arch;
+	ehs::UInt_32 elfV2;
+	ehs::UInt_64 entryAddress;
+	ehs::UInt_64 programsOffset;
+	ehs::UInt_64 sectionsOffset;
+	ehs::UInt_32 flags;
+	ehs::UInt_16 headerSize;
+	ehs::UInt_16 pHeaderSize;
+	ehs::UInt_16 pEntries;
+	ehs::UInt_16 sSize;
+	ehs::UInt_16 sEntries;
+	ehs::UInt_16 strTabIndex;
+	ehs::Vector<ELF64_Program> programs;
+	ehs::Vector<ELF64_Section> sections;
+
+public:
+	ELF64();
+
+	ELF64(ehs::UInt_8& subArch, ehs::UInt_8& end, ehs::UInt_8& abi, ehs::UInt_16& type, ehs::UInt_16& arch);
+
+	ELF64(ehs::Serializer<ehs::UInt_64>& data);
+
+	ehs::UInt_8 GetSubArchitecture() const;
+
+	ehs::UInt_8 GetEndianness() const;
+
+	ehs::UInt_8 GetABI() const;
+
+	ehs::UInt_16 GetType() const;
+
+	ehs::UInt_16 GetArchitecture() const;
+
+	void SetEntryPoint(ehs::UInt_64 newEntryPoint);
+
+	ehs::UInt_64 GetEntryPoint() const;
+
+	ehs::Serializer<ehs::UInt_64> Serialize() const;
+};
\ No newline at end of file
diff --git a/include/ELF64_Program.h b/include/ELF64_Program.h
new file mode 100644
index 0000000..828d17e
--- /dev/null
+++ b/include/ELF64_Program.h
@@ -0,0 +1,5 @@
+#pragma once
+
+class ELF64_Program
+{
+};
\ No newline at end of file
diff --git a/include/ELF64_Section.h b/include/ELF64_Section.h
new file mode 100644
index 0000000..025c3f2
--- /dev/null
+++ b/include/ELF64_Section.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <ehs/Array.h>
+#include <ehs/Str.h>
+
+class ELF64_Section
+{
+private:
+	friend class ELF64;
+
+	ehs::Str_8 name;
+	ehs::UInt_32 nameIndex;
+	ehs::UInt_32 type;
+	ehs::UInt_64 flags;
+	ehs::UInt_64 vAddr;
+	ehs::UInt_64 segmentOffset;
+	ehs::UInt_64 segmentSize;
+	ehs::UInt_32 associatedIndex;
+	ehs::UInt_32 info;
+	ehs::UInt_64 align;
+	ehs::UInt_64 entrySize;
+
+public:
+	ELF64_Section();
+
+	ELF64_Section();
+};
\ No newline at end of file
diff --git a/src/ELF64.cpp b/src/ELF64.cpp
new file mode 100644
index 0000000..e78a092
--- /dev/null
+++ b/src/ELF64.cpp
@@ -0,0 +1,3 @@
+//
+// Created by karutoh on 2/14/24.
+//
diff --git a/src/ELF64_Program.cpp b/src/ELF64_Program.cpp
new file mode 100644
index 0000000..e78a092
--- /dev/null
+++ b/src/ELF64_Program.cpp
@@ -0,0 +1,3 @@
+//
+// Created by karutoh on 2/14/24.
+//
diff --git a/src/ELF64_Section.cpp b/src/ELF64_Section.cpp
new file mode 100644
index 0000000..e78a092
--- /dev/null
+++ b/src/ELF64_Section.cpp
@@ -0,0 +1,3 @@
+//
+// Created by karutoh on 2/14/24.
+//