diff --git a/docs/C1_Caspers_Smith_Chart.pdf b/docs/C1_Caspers_Smith_Chart.pdf
new file mode 100644
index 0000000..1a12c2f
Binary files /dev/null and b/docs/C1_Caspers_Smith_Chart.pdf differ
diff --git a/docs/IPC-2581B.pdf b/docs/IPC-2581B.pdf
new file mode 100644
index 0000000..3d1ebe4
Binary files /dev/null and b/docs/IPC-2581B.pdf differ
diff --git a/docs/IPC-2581C.pdf b/docs/IPC-2581C.pdf
new file mode 100644
index 0000000..3371410
Binary files /dev/null and b/docs/IPC-2581C.pdf differ