If you are deploying Workbooks in a multiple-language environment you may want to ensure your users are using the automated translation facilities of their web browser. Google's Chrome is particularly good at this (although not perfect). 
 

For example a French user visiting Workbooks will be prompted to translate the page from English into French:

Accepting the browser's offer results in the site appearing translated:

Importantly the translation does not affect the content of form fields; you can see that window titles are translated:

NOTE: Full support of Workbooks in native languages is possible, see here.