diff --git a/README.md b/README.md
index 42952fb..4958252 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,15 @@
.**cool** file **p**ile-**up**s with **py**thon.
+A versatile tool to perform pile-up analysis on Hi-C data in .cool format (https://github.com/mirnylab/cooler). And who doesn't like cool pupppies?
+`pip install coolpuppy` will make coolpup.py callable in your terminal.
+This is the idea of how pileups work, in case you are checking whether certain regions tend to interacts with each other:
-A versatile tool to perform pile-up analysis on Hi-C data in .cool format (https://github.com/mirnylab/cooler). And who doesn't like cool pupppies?
-`pip install coolpuppy` will make coolpup.py callable in your terminal.
+
+
+What's not shown here is normalization to the expected values, done here by dividing the pileups by randomly shifted control regions. In the future dividing by expected values from whole-chromosome by-diagonal average will be possible.
```
Usage: coolpup.py [-h] [--pad PAD] [--minshift MINSHIFT] [--maxshift MAXSHIFT]
diff --git a/loop_quant.svg b/loop_quant.svg
new file mode 100644
index 0000000..033fb85
--- /dev/null
+++ b/loop_quant.svg
@@ -0,0 +1,448 @@
+
+
+
+