*[Data Structures](http://www.cse.iitd.ernet.in/~suban/cs130/index.html) - Prof. Subhashis Banerjee, IIT Delhi
*[Data Structures and Algorithms: Annotated Reference with Examples](https://drive.google.com/file/d/0B48k2jhdQ5P2aVlmMFB1UUJLczA/edit?usp=sharing)
*[Data Structures Succinctly Part 1, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/datastructurespart1)(PDF, Kindle) *(Just fill the fields with any values)*
*[Data Structures Succinctly Part 2, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/datastructurespart2)(PDF, Kindle) *(Just fill the fields with any values)*
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@@ -502,6 +503,7 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
#### Operating systems
*[How to Make a Computer Operating System (Work in Progress)](https://github.com/SamyPesse/How-to-Make-a-Computer-Operating-System)
*[Operating Systems](http://www.cse.iitd.ernet.in/~suban/csl373/index.html) - Prof. Subhashis Banerjee, IIT Delhi
*[Operating Systems and Middleware](https://gustavus.edu/mcs/max/os-book/)(PDF and LaTeX)
*[Operating Systems: Three Easy Pieces](http://pages.cs.wisc.edu/~remzi/OSTEP/)(PDF)
*[Practical File System Design: The Be File System](http://www.nobius.org/~dbg/practical-file-system-design.pdf)(PDF) - Dominic Giampaolo
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@@ -606,6 +608,7 @@ Original Source: [Free Programming books](http://stackoverflow.com/revisions/392
*[Building Blocks for Theoretical Computer Science](http://www.cs.uiuc.edu/~mfleck/building-blocks/index.html) - Margaret M. Fleck
*[Category Theory for Computing Science](http://www.tac.mta.ca/tac/reprints/articles/22/tr22.pdf)(PDF)
*[Homotopy Type Theory: Univalent Foundations of Mathematics](http://homotopytypetheory.org/book/)(PDF)
*[Introduction to Computer Science](http://www.cse.iitd.ernet.in/~suban/CSL102/) - Prof. Subhashis Banerjee, IIT Delhi
*[Introduction to Computing](http://www.computingbook.org/)
*[Introduction to Theory of Computation](http://cg.scs.carleton.ca/~michiel/TheoryOfComputation/)(PDF) - Anil Maheshwari and Michiel Smid
*[Models of Computation](http://cs.brown.edu/people/jes/book/) - John E. Savage