diff --git a/README.md b/README.md
index bdf02ecf..e62cbca1 100644
--- a/README.md
+++ b/README.md
@@ -2920,14 +2920,21 @@ _**Unofficial** set of patterns for structuring projects._
 
 ## E-Books
 
+## E-books for purchase
+
 * [100 Go Mistakes: How to Avoid Them](https://www.manning.com/books/100-go-mistakes-how-to-avoid-them)
-* [A Go Developer's Notebook](https://leanpub.com/GoNotebook/read)
-* [An Introduction to Programming in Go](http://www.golang-book.com/)
 * [Build an Orchestrator in Go](https://www.manning.com/books/build-an-orchestrator-in-go)
-* [Build Web Application with Golang](https://astaxie.gitbooks.io/build-web-application-with-golang/content/en/)
-* [Building Web Apps With Go](https://codegangsta.gitbooks.io/building-web-apps-with-go/content/)
 * [Continuous Delivery in Go](https://www.manning.com/books/continuous-delivery-in-go) - This practical guide to continuous delivery shows you how to rapidly establish an automated pipeline that will improve your testing, code quality, and final product.
 * [For the Love of Go](https://bitfieldconsulting.com/books/love) - An introductory book for Go beginners.
+* [Writing A Compiler In Go](https://compilerbook.com)
+* [Writing An Interpreter In Go](https://interpreterbook.com) - Book that introduces dozens of techniques for writing idiomatic, expressive, and efficient Go code that avoids common pitfalls.
+
+## Free e-books
+
+* [A Go Developer's Notebook](https://leanpub.com/GoNotebook/read)
+* [An Introduction to Programming in Go](http://www.golang-book.com/)
+* [Build Web Application with Golang](https://astaxie.gitbooks.io/build-web-application-with-golang/content/en/)
+* [Building Web Apps With Go](https://codegangsta.gitbooks.io/building-web-apps-with-go/content/)
 * [Go 101](https://go101.org) - A book focusing on Go syntax/semantics and all kinds of details.
 * [Go Bootcamp](http://golangbootcamp.com)
 * [Go Succinctly](https://github.com/thedevsir/gosuccinctly) - in Persian.
@@ -2940,9 +2947,6 @@ _**Unofficial** set of patterns for structuring projects._
 * [The Go Programming Language](https://www.gopl.io/)
 * [The Golang Standard Library by Example (Chinese)](https://github.com/polaris1119/The-Golang-Standard-Library-by-Example)
 * [Web Application with Go the Anti-Textbook](https://github.com/thewhitetulip/web-dev-golang-anti-textbook/)
-* [Writing A Compiler In Go](https://compilerbook.com)
-* [Writing An Interpreter In Go](https://interpreterbook.com) - Book that introduces dozens of techniques for writing idiomatic, expressive, and efficient Go code that avoids common pitfalls.
-
 
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