diff --git a/pdf/61. Linux 101 Hacks.pdf b/pdf/61. Linux 101 Hacks.pdf new file mode 100644 index 0000000..7c6314e Binary files /dev/null and b/pdf/61. Linux 101 Hacks.pdf differ diff --git a/pdf/62. Introduction to Linux - A Hands on Guide.pdf b/pdf/62. Introduction to Linux - A Hands on Guide.pdf new file mode 100644 index 0000000..c8aebb4 Binary files /dev/null and b/pdf/62. Introduction to Linux - A Hands on Guide.pdf differ diff --git a/pdf/63. Bluetooth Security.pdf b/pdf/63. Bluetooth Security.pdf new file mode 100644 index 0000000..5b40989 Binary files /dev/null and b/pdf/63. Bluetooth Security.pdf differ diff --git a/pdf/64. IT Governance - A Manager's Guide to Data Security and ISO 27001 and 27002.pdf b/pdf/64. IT Governance - A Manager's Guide to Data Security and ISO 27001 and 27002.pdf new file mode 100644 index 0000000..594dce9 Binary files /dev/null and b/pdf/64. IT Governance - A Manager's Guide to Data Security and ISO 27001 and 27002.pdf differ diff --git a/pdf/65. Batch File Programming.pdf b/pdf/65. Batch File Programming.pdf new file mode 100644 index 0000000..d967b7f Binary files /dev/null and b/pdf/65. Batch File Programming.pdf differ