# How to increase Chinese character space?

Sometimes the spaces between Characters are too small, especially in book titles which could be seen in the following picture.

Then my QUESTION is how to increase the space between Chinese characters?

I used \CJKglue to improve this but failed. Who has some more advice？

A working sample is as follows:

\documentclass[UTF8]{ctexart}
\begin{document}

\end{document}

• Please provide a "Minimal Working Example" (MWE) that starts with \documentclass, includes all relevant \usepackage commands, ends with \end{document} and compiles without errors, even if it does not produce your desired output. – Sandy G Dec 6 '17 at 3:20
• Just guessing, but maybe \ziju{0.03em} or something. – Troy Dec 6 '17 at 3:20

\ziju{<factor>} works.
\documentclass[UTF8]{ctexart}