diff --git a/README.md b/README.md
index b3140be0..b2f42e24 100644
--- a/README.md
+++ b/README.md
@@ -481,6 +481,7 @@ Projects that are not in English have a flag
 - [HomeKit-Demo](https://github.com/KhaosT/HomeKit-Demo) 🔶🔥🔥
 - [iOS 8 Sampler](https://github.com/shu223/iOS8-Sampler): Code examples for the new functions in iOS 8 🔥🔥🔥🔥🔥
 - [iOS 9 Sampler](https://github.com/shu223/iOS-9-Sampler): Code examples for the new functions in iOS 9 🔶🔥🔥🔥🔥🔥
+- [Knock-to-React](https://github.com/MatheusCavalca/Knock-To-React): Example of hw to built an exclusive feature to interact with users just by receiving and recognizing "knocks" in the device.
 - [Layer-Parse](https://github.com/kwkhaw/Layer-Parse-iOS-Swift-Example): This is a Swift sample app that integrates Layer and Atlas with Parse 🔶
 - LayerPlayer: Explore the capabilities of Apple's Core Animation API 🔶🔥🔥🔥
   - https://github.com/scotteg/LayerPlayer
@@ -605,6 +606,7 @@ Projects that are not in English have a flag
 - Population Clock: Learn about geography and demographics
   - https://github.com/Netfilter-Com/PopulationClock
   - https://itunes.apple.com/app/population-clock-hd/id590689957
+- [Borrowed Books UFGRS:](https://github.com/MatheusCavalca/RenovaLivrosUFRGS) Manage borrowed books at UFRGS using SABI. 🔶
 - Round & Split: Tip Calculator 🔶
   - https://github.com/lukhnos/roundandsplit
   - https://itunes.apple.com/app/round-split/id912288737