diff --git a/content/post/books/index.md b/content/post/books/index.md
index f89309a..0972456 100644
--- a/content/post/books/index.md
+++ b/content/post/books/index.md
@@ -18,20 +18,24 @@ This is just a collection, in so specific order, of books i read or i intent to
 the [F] tag means that the book is available freely online. A great starting point if you want to look for books that are free on the topic of programming, computer vision, mathematics and much more is [this amazing repository](https://github.com/EbookFoundation/free-programming-books)
 
 # Programming
-- Clean Code 
-- Clean Architecture
-- Data Structures the fun way
-- Essential Java
-- The GO programming language
-- Design Patterns: Elements of Reusable Object-Oriented Software
-- The C Programming Language
-- Crypto Dictionary: 500 Tasty Tidbits for the Curious Cryptographer
-- [Everything cURL](https://everything.curl.dev/) (more of a guide than a book, also available as PDF)
+- [Clean Code](https://www.google.it/books/edition/Clean_Code/_i6bDeoCQzsC?hl=it&gbpv=0)
+- [Clean Architecture](https://www.google.it/books/edition/Clean_Architecture/uGE1DwAAQBAJ?hl=it&gbpv=0&bsq=clean%20architecture)
+- [Data Structures the fun way](https://nostarch.com/data-structures-fun-way)
+- [Effective Java](https://www.google.it/books/edition/Effective_Java/ka2VUBqHiWkC?hl=it&gbpv=0)
+- [The GO programming language](https://www.google.it/books/edition/The_Go_Programming_Language/SJHvCgAAQBAJ?hl=it&gbpv=0)
+- [Design Patterns: Elements of Reusable Object-Oriented Software](https://www.google.it/books/edition/Design_Patterns/jUvf7wMUGcUC?hl=it&gbpv=0)
+- [The C Programming Language](https://www.google.it/books/edition/The_C_Programming_Language/HHhGAAAAYAAJ?hl=it&gbpv=0&bsq=the%20c%20programming%20language)
+- [Crypto Dictionary: 500 Tasty Tidbits for the Curious Cryptographer](https://www.google.it/books/edition/Crypto_Dictionary/Dp4eEAAAQBAJ?hl=it&gbpv=0)
+- [Everything cURL](https://everything.curl.dev/) [F] (more of a guide than a book, also available as PDF)
+- [Algorithmic Thinking, 2nd Edition: Unlock Your Programming Potential](https://nostarch.com/algorithmic-thinking-2nd-edition)
+
 # Open Source/ Free software
-- La cattedrale e il bazaar
-- Open non e' Free [F]
+- [The Cathedral and the Bazaar](https://www.google.it/books/edition/The_Cathedral_the_Bazaar/F6qgFtLwpJgC?hl=en&gbpv=0)
+- [Open non e' Free](https://eleuthera.it/files/materiali/ippolita_open_non_e_free.pdf) [F] [ITALIAN]
+= [Free as in Freedom](https://web.archive.org/web/20150103152231/https://static.fsf.org/nosvn/faif-2.0.pdf) [F]
 
 # Linux
-- The Orange book pt. 2 [F]
+- [The Orange book pt. 2](https://www.autistici.org/orangebook2/) [F]
 - [How Linux Works, 3rd Edition: What Every Superuser Should Know](https://nostarch.com/howlinuxworks3)
-- Linux Bible
+- [Linux Bible](https://books.google.it/books/about/Linux_Bible.html?id=5rDbDwAAQBAJ&redir_esc=y)
+- [Linux basics for Hakers](https://nostarch.com/linuxbasicsforhackers)