diff --git a/pdf/11. Modern Web Penetration Testing.pdf b/pdf/11. Modern Web Penetration Testing.pdf new file mode 100644 index 0000000..7a83c10 Binary files /dev/null and b/pdf/11. Modern Web Penetration Testing.pdf differ diff --git a/pdf/12. The Shellcoder's Handbook.pdf b/pdf/12. The Shellcoder's Handbook.pdf new file mode 100644 index 0000000..f5ac02a Binary files /dev/null and b/pdf/12. The Shellcoder's Handbook.pdf differ diff --git a/pdf/13. The Little Black Book of Computer Viruses.pdf b/pdf/13. The Little Black Book of Computer Viruses.pdf new file mode 100644 index 0000000..3b18ebf Binary files /dev/null and b/pdf/13. The Little Black Book of Computer Viruses.pdf differ diff --git a/pdf/14. XSS Attacks - Cross Site Scripting Exploits and Defense.pdf b/pdf/14. XSS Attacks - Cross Site Scripting Exploits and Defense.pdf new file mode 100644 index 0000000..2461361 Binary files /dev/null and b/pdf/14. XSS Attacks - Cross Site Scripting Exploits and Defense.pdf differ diff --git a/pdf/15. The Web Application Hacker's Handbook.pdf b/pdf/15. The Web Application Hacker's Handbook.pdf new file mode 100644 index 0000000..b37e814 Binary files /dev/null and b/pdf/15. The Web Application Hacker's Handbook.pdf differ