Programming, CS & Cybersecurity Books 2026 (29 Free PDFs) – BCA, MCA & B.Sc

iOS Hacker's Handbook explains iOS security architecture, jailbreaking, and how researchers find and exploit vulnerabilities in Apple's mobile OS.

5G Mobile and Wireless Communications Technology covers the architecture, protocols, and technical fundamentals of 5G networks for networking and telecom students.

Android Security Internals breaks down Android's permission model, sandboxing, and system-level security mechanisms for app and OS security learners.

iOS Application Security is a hands-on guide to testing and securing iOS apps, aimed at appsec professionals and bug bounty hunters.

Anti-Hacker Tool Kit (4th Edition) reviews the tools security professionals use for detection, defense, and incident response.

Digital Forensics with Linux teaches forensic investigation techniques and evidence collection using Linux-based tools.

Inside the Dark Web introduces Tor, hidden services, and how the dark web operates from a research and security perspective.

Hacking With Kali Linux: A Step by Step Beginner's Guide is a beginner-friendly introduction to penetration testing using Kali Linux.

Wireless Hacking With Kali Linux focuses on Wi-Fi security testing, packet analysis, and wireless attack techniques.

Real-World Bug Hunting is a practical field guide to web vulnerability types drawn from real bug bounty reports.

Kismet Hacking covers wireless network detection and analysis using the Kismet toolset.

Introduction to Computer Security by Matt Bishop is a foundational academic textbook on security policies, models, and cryptography basics.

Security in Computing (5th Edition) by Pfleeger is a comprehensive computer security textbook covering networks, OS, and application-level security — widely used in university CS courses.

Balaguruswamy OOPS with C++ is E. Balagurusamy's beginner-friendly textbook on classes, objects, inheritance, polymorphism, templates and file handling in C++, widely used in Indian university courses.

Data Communication & Networking is Behrouz A. Forouzan's standard networking textbook covering the OSI and TCP/IP models, data-link and network layers, IP addressing, routing and transport protocols.

Learning C++ is a topic-wise introduction to C++ syntax, functions, pointers and classes.

Learning C Language is an introductory reference to C covering data types, control flow, functions, pointers and memory.

Learning C# (Sharp) is an introduction to core C# syntax and object-oriented features.

Python Notes for Professionals is a compact, topic-wise Python reference for quick revision.

Java Notes for Professionals is a compact, topic-wise Java reference for quick revision.

Overview of Artificial Intelligence is an introductory overview of artificial intelligence concepts and applications.

E-Commerce is an introduction to e-commerce models, online business processes and payment systems.

Git Notes for Professionals is a practical reference to Git commands, branching and collaboration workflows.

MySQL is a hands-on reference for MySQL and SQL queries.

The C++ Programming Language (4th Edition) is Bjarne Stroustrup's in-depth reference to C++ and its standard library, written by the creator of the language.

Fundamentals of Database Systems is the standard DBMS textbook by Elmasri and Navathe, covering ER modelling, the relational model, SQL, normalization and transactions.

C++ The Complete Reference (4th Edition) is Herbert Schildt's encyclopedic guide to C++ syntax and the standard library, handy for lookups.

Object-Oriented Programming in C++ (4th Edition) is Robert Lafore's practical, example-driven introduction to OOP in C++.

C++ Primer (5th Edition) is a thorough introduction to modern C++ by Lippman, Lajoie and Moo.