Unlike most performing ensembles, the Guarneri permitted, and even encouraged, public awareness of their work as they prepared concerts, and they allowed backstage glimpses of the interpersonal dynamics within the group. From the beginning they conducted "genuine" open rehearsals, in which audiences could listen as they argued over the best way to play a passage or whether a piece they were considering ought to become part of their repertoire. They frequently held interactive sessions with audiences and they regularly made themselves available for interviews by journalists and writers. On several occasions they allowed observers to travel with the quartet and to publish detailed accounts of their activities onstage, in rehearsal, and during their travel time and free hours. In addition, Arnold Steinhardt published a book of memoirs in 1998 under the title "Indivisible by Four: A String Quartet in Search of Harmony" (see Resources). As a result of all this, a good deal is known about the way the group worked, musically and psychologically.