Having an open space ' under the stairs ' giving just right space for a desk ( from Joss and Main, also divine ) the reduced height under bottom of the stairs did not leave much room for any shelving or much choice solving the problem of storage for books and files,  Until stumbled on these clever little cubes,  Other reviewers , the majority of whom used as ' rodent/pet cages,   not me, cleverly filled accordingly the limited space which gives more than adequate and very neat answer to the needs for required items. and paired with a Shabby Elegance desk this more industrial look works perfectly.   How did one shop before discovering Wayfair,?
with difficulty is the answer