diff --git a/ch10/README.md b/ch10/README.md
new file mode 100644
index 0000000..ec4cedf
--- /dev/null
+++ b/ch10/README.md
@@ -0,0 +1 @@
+10.
\ No newline at end of file
diff --git a/ch10/fork.c b/ch10/fork.c
new file mode 100644
index 0000000..1c03a85
--- /dev/null
+++ b/ch10/fork.c
@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <unistd.h>
+
+int gval = 10;
+int main(int argc, char *argv[])
+{
+    pid_t pid;
+    int lval = 20;
+    gval++, lval += 5;
+
+    pid = fork();
+    if (pid == 0)
+        gval += 2, lval += 2;
+    else
+        gval -= 2, lval -= 2;
+
+    if (pid == 0)
+        printf("Child Proc: [%d,%d] \n", gval, lval);
+    else
+        printf("Parent Proc: [%d,%d] \n", gval, lval);
+
+    return 0;
+}