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\begin{center}

  {\LARGE\textbf{Modern C++ Tutorial: C++11/14/17/20 On the Fly}}

  \vspace{1em}
  {\large Changkun Ou (hi[at]changkun.de)}

  \vspace{1ex}
  Last update: \today

  \vspace{1ex}
  \textbf{Notice}

  \noindent The content in this PDF file may outdated, please check \href{https://changkun.de/modern-cpp}{our website} or \href{https://github.com/changkun/modern-cpp-tutorial}{GitHub repository} for the latest book updates.

  \vspace{1em}
  \textbf{\large License}

  \noindent This work was written by \href{https://github.com/changkun}{Ou Changkun} and licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. \texttt{\small https://creativecommons.org/licenses/by-nc-nd/4.0/}

  \vspace{5em}
  \includegraphics{../../assets/cover-2nd-en}

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