of the book support elements 12 and 14 it is necessary that only one book support element 12 and 14 have an angularity support element 20 and 22 pivotally connected thereto in order to provide an angular support for the book holder assembly 10 with this configuration cord element 28 would pass through a pair of eyelets positioned near each bottom edge of each of a pair of spaced apart book holder book support elements and through a single eyelet in a single book spine support element pivotally connected to one of the book support elements as a general proposition i prefer to mold the principal non cord components of assembly 10 of thermoplastic resin having substantial rigidity in the cured condition such as a polypropylene resin or the like fig3 illustrates book holder assembly 10 in a fully closed condition in this regard complete closure is effected by use of the torsion spring page holders 44 and 46 in an overlapping deployment fig4 illustrates book holder assembly 10 with an accessory electrical reading lamp 50 attached to removable insert 52 and installed in an assembly pocket 38 of book support element 14 fig6 on the other hand illustrates the book holder assembly with a clamp element 54 mounted on insert member 56 received in a pocket 38 of book support element 12 and positioned to be rigidly secured to a table top fig5 illustrates the manner whereby assembly 10 may be utilized to support a book for reading while positioned in the driver 39 s seat 60 in a non moving conventional automobile as shown in that illustration it is only necessary.