diff --git a/Presentations/Hourglass Interfaces for C++ APIs - Stefanus Du Toit - CppCon 2014/Hourglass Interfaces for C++ APIs - Stefanus Du Toit - CppCon 2014.pdf b/Presentations/Hourglass Interfaces for C++ APIs - Stefanus Du Toit - CppCon 2014/Hourglass Interfaces for C++ APIs - Stefanus Du Toit - CppCon 2014.pdf new file mode 100644 index 0000000..2602dd8 Binary files /dev/null and b/Presentations/Hourglass Interfaces for C++ APIs - Stefanus Du Toit - CppCon 2014/Hourglass Interfaces for C++ APIs - Stefanus Du Toit - CppCon 2014.pdf differ