diff --git a/mba-main.org b/mba-main.org
index 14a448b..075e178 100755
--- a/mba-main.org
+++ b/mba-main.org
@@ -66,3 +66,6 @@
 - [[./mba/ch58.org][Chapter 58. How to Build a Financial Model for a Public Company]]
 - [[./mba/ch59.org][Chapter 59. Read Financials like a book & find patterns in data]]
 - [[./mba/ch60.org][Chapter 60. How to Value Public Firms the Easy Way]]
+
+** seciton 12 - Initial Public Offering (IPO)
+- [[./mba/ch64.org][Chapter 64. How an IPO works]]