وَإِذَا قَرَأْتَ الْقُرْآنَ جَعَلْنَا بَيْنَكَ وَبَيْنَ الَّذِينَ لَا يُؤْمِنُونَ بِالْآخِرَةِ حِجَابًا مَّسْتُورًا 
This volume records the lives and efforts of some of the prophets preceeding the birth of Mohammad. It devotes most of its message to two towering figures--Abraham, the Friend of God, and his great-grandson, Joseph.