History has recorded King Abdulaziz's care for books, which included buying, distributing, and endowing them to students of knowledge to revive Islamic heritage and printing many manuscripts and books for which sufficient numbers were not available for scholars and researchers to benefit from.

Most of the books endowed by King Abdulaziz were characterized by the rarity of their copies, so their endowment was a great service to students of knowledge in his time, as obtaining a copy of them used to cost a lot and students of knowledge were deprived of benefiting from them due to their rarity.

The endowment formula on the books endowed by King Abdulaziz was: (Whoever sees it knows that the Imam Abdulaziz bin Abdulrahman Al Faisal has endowed this book for the sake of d to students of knowledge, it is not to be sold, inherited, or withheld. So whoever changes it after hearing it, his sin is only upon those who change it. Indeed, d is Hearing and Knowing)