diff --git a/C_Changes_1978.pdf b/C_Changes_1978.pdf new file mode 100644 index 0000000..7d51ddc Binary files /dev/null and b/C_Changes_1978.pdf differ diff --git a/C_Language_Calling_Sequence.pdf b/C_Language_Calling_Sequence.pdf new file mode 100644 index 0000000..d970132 Binary files /dev/null and b/C_Language_Calling_Sequence.pdf differ diff --git a/C_Reference.pdf b/C_Reference.pdf new file mode 100644 index 0000000..8385ff3 Binary files /dev/null and b/C_Reference.pdf differ diff --git a/C_Tutorial.pdf b/C_Tutorial.pdf new file mode 100644 index 0000000..7425d0f Binary files /dev/null and b/C_Tutorial.pdf differ diff --git a/Developement_of_C_1993.pdf b/Developement_of_C_1993.pdf new file mode 100644 index 0000000..80dbf0c Binary files /dev/null and b/Developement_of_C_1993.pdf differ diff --git a/Evolution_of_Unix_Timesharing.pdf b/Evolution_of_Unix_Timesharing.pdf new file mode 100644 index 0000000..a61001b Binary files /dev/null and b/Evolution_of_Unix_Timesharing.pdf differ diff --git a/Interprocess_Communications.pdf b/Interprocess_Communications.pdf new file mode 100644 index 0000000..8c709d9 Binary files /dev/null and b/Interprocess_Communications.pdf differ diff --git a/Plan_9_C_Compiler.pdf b/Plan_9_C_Compiler.pdf new file mode 100644 index 0000000..1687f04 Binary files /dev/null and b/Plan_9_C_Compiler.pdf differ diff --git a/Plan_9_HelloWorld.pdf b/Plan_9_HelloWorld.pdf new file mode 100644 index 0000000..c3def3c Binary files /dev/null and b/Plan_9_HelloWorld.pdf differ diff --git a/Plan_9_Plumbing.pdf b/Plan_9_Plumbing.pdf new file mode 100644 index 0000000..1d0d4cf Binary files /dev/null and b/Plan_9_Plumbing.pdf differ diff --git a/Plan_9_ReleaseNotes_2014.pdf b/Plan_9_ReleaseNotes_2014.pdf new file mode 100644 index 0000000..696b1ef Binary files /dev/null and b/Plan_9_ReleaseNotes_2014.pdf differ diff --git a/Plan_9_Spin.pdf b/Plan_9_Spin.pdf new file mode 100644 index 0000000..09d3fb7 Binary files /dev/null and b/Plan_9_Spin.pdf differ diff --git a/Plan_9_Venti.pdf b/Plan_9_Venti.pdf new file mode 100644 index 0000000..0e5d8d9 Binary files /dev/null and b/Plan_9_Venti.pdf differ diff --git a/Plan_9_lp_Spooler.pdf b/Plan_9_lp_Spooler.pdf new file mode 100644 index 0000000..4dbe1ea Binary files /dev/null and b/Plan_9_lp_Spooler.pdf differ diff --git a/Streem_IO.pdf b/Streem_IO.pdf new file mode 100644 index 0000000..dc05672 Binary files /dev/null and b/Streem_IO.pdf differ diff --git a/Unix_Timesharing.pdf b/Unix_Timesharing.pdf new file mode 100644 index 0000000..88d9d8d Binary files /dev/null and b/Unix_Timesharing.pdf differ diff --git a/VaribleSized_Arrays_in_C.pdf b/VaribleSized_Arrays_in_C.pdf new file mode 100644 index 0000000..28ddbbb Binary files /dev/null and b/VaribleSized_Arrays_in_C.pdf differ