diff --git a/Books/RPOM-164-v4.pdf b/Books/RPOM-164-v4.pdf
deleted file mode 100644
index 1f2c2de..0000000
Binary files a/Books/RPOM-164-v4.pdf and /dev/null differ
diff --git a/Books/RPOM165-v3.pdf b/Books/RPOM165-v3.pdf
deleted file mode 100644
index 5113f54..0000000
Binary files a/Books/RPOM165-v3.pdf and /dev/null differ
diff --git a/Books/RPOM166.pdf b/Books/RPOM166.pdf
deleted file mode 100644
index 6c3ae67..0000000
Binary files a/Books/RPOM166.pdf and /dev/null differ