The courtyard is flanked on four sides by 32 khanas, or small study cloisters for religious scholars.
Above quotation is from the Wikipedia entry; it tells the history of Wazir Khan mosque’s 17th century CE construction, its deterioration through the 19th & 20th centuries, and its (ongoing) 21st century restoration. It includes many photos.
Variously calligraphic or representational, the courtyard-facing walls’ ornamentation is consistently lovely and relatively “restrained”; it covers a relatively small portion of those walls’ brickwork.
In its style, scale – and sheer extravagance – the ornamentation of the mosque’s prayer hall is altogether “something else”!
The remaining Wazir Khan chapters will offer closer views of the prayer hall’s decorations, most especially the frescoes on its domes’ ceilings.