diff --git a/src/stats.py b/src/stats.py
new file mode 100644
--- /dev/null
+++ b/src/stats.py
@@ -0,0 +1,28 @@
+class Stats:
+	received=0
+	sent=0
+	exchangedNodes=0
+	transferredBlocks=0
+
+
+def logReceived(data):
+	Stats.received+=len(data)
+
+
+def logSent(data):
+	Stats.sent+=len(data)
+
+
+def logExchangedNode():
+	Stats.exchangedNodes+=1
+
+
+def logTransferredBlock():
+	Stats.transferredBlocks+=1
+
+
+def report():
+	return """received {r}B
+sent {s}B
+exchanged {nodes} hash tree nodes
+transferred {blocks} blocks""".format(r=Stats.received, s=Stats.sent, nodes=Stats.exchangedNodes, blocks=Stats.transferredBlocks)