# Why aren't backtics giving me curly quotes?

I'm using the appropriate keystrokes to get curly quotes, but I'm not getting them. What is wrong here?

\documentclass[nols,nohyper,openany, letterpaper]{tufte-book}

\definecolor{Ahrenge}{RGB}{214, 88, 18}
\usepackage{fontspec}
\setmainfont{Georgia}
\setsansfont{Georgia}
\usepackage{lipsum}
%\usepackage{biblatex}
\usepackage{hyperref}

\begin{document}

%\maketitle

%\pagestyle{mystyle}
\chapter{Notes}

\bigskip

Here is a quote,'' but it is quite fake.''

\end{document}

-

You just need to tell XeLaTeX that you wish to use standard TeX ligatures:

\documentclass[nols,nohyper,openany, letterpaper]{tufte-book}

\definecolor{Ahrenge}{RGB}{214, 88, 18}
\usepackage{fontspec}
\setmainfont[Mapping=tex-text]{Georgia}
\setsansfont[Mapping=tex-text]{Georgia}
\usepackage{lipsum}
%\usepackage{biblatex}
\usepackage{hyperref}

\begin{document}

%\maketitle

%\pagestyle{mystyle}
\chapter{Notes}

\bigskip

Here is a quote,'' but it is quite fake.''

\end{document}


If you are using LuaTeX rather than XeTeX:

\documentclass[nols,nohyper,openany, letterpaper]{tufte-book}

\definecolor{Ahrenge}{RGB}{214, 88, 18}
\usepackage{fontspec}
\setmainfont[Ligatures=TeX]{Georgia}
\setsansfont[Ligatures=TeX]{Georgia}
\usepackage{lipsum}
%\usepackage{biblatex}
\usepackage{hyperref}

\begin{document}

%\maketitle

%\pagestyle{mystyle}
\chapter{Notes}

\bigskip

Here is a quote,'' but it is quite fake.''

As the manual explains, this second syntax will also work for XeLaTeX because fontspec will translate it into the Mapping=tex-text invocation. See fontspec's documentation for further details and other options.
In fact, the documentation prefers Ligatures=TeX in both engines. – Manuel May 3 '14 at 1:16
The bit I looked up said that Ligatures=TeX would be turned into Mapping=... in the case of XeLaTeX but that Mapping=... was really the mechanism involved. If anything, it implied that the mapping one to the other was there just so things more-or-less worked as expected when people used the 'wrong' configuration setting. [Note: I'm not saying this is correct - just that's what the fontspec manual indicated.] – cfr May 3 '14 at 1:20
You are right, but there's nothing wrong with only using Ligatures, that's all. A quote from the manual: “Using the tex-text mapping is also equivalent to writing Ligatures=TeX. The use of the latter syntax is recommended for better compatibility with LuaTEX documents.” – Manuel May 3 '14 at 1:29