The angular concrete form of the OMA-designed Qatar National Library in Doha has been photographed by several Instagram users, ahead of its imminent completion.

Rem Koolhaas' firm has disclosed few details about its design so far – it isn't even listed on the OMA website. But it is one of several buildings the architects have been working on in the Arab country, including the nearby Qatar Foundation Headquarters.

A photo posted by Photographer (@tboake) on Feb 18, 2016 at 4:46am PST

The 45,000-square-metre building will be divided up into three wings, each housing a different type of library.

The National Library will contain heritage material relating to Qatar and the region, the University and Research Library will contain education resources, and the Metropolitan Public Library will serve the local community.

A photo posted by ISFANDIARI ANANTA (@idanantha) on Nov 14, 2015 at 8:21am PST

Facilities will include a conservation library for preserving sensitive documents, a digitisation suite, a 120-seat auditorium, and dedicated libraries for children and teenagers.

A photo posted by ⦣ Josselin Jung (@joss1289) on Aug 12, 2016 at 8:38am PDT

Plans for the library were first announced in 2012. It is being built at Education City, a major new city campus that is also home to the Qatar National Convention Centre by Japanese architect Arata Isozaki.

Instagram photos reveal an angular concrete form that creates diamond-shaped facades. An entrance is sheltered beneath the structure's elevated end, while windows appear to be made from undulating panels of glass.

A photo posted by Majed Munshi (@makkawii) on Nov 27, 2015 at 5:13am PST

OMA – which ranked at number 12 on the Dezeen Hot List – has been appointed to work on numerous projects in Qatar, but few have completed so far.

The firm was also commissioned to masterplan a new city quarter between Doha and the new Hamad International Airport.