Under the patronage of the Custodian of the two Holy Mosques King Abdullah bin Abdulaziz, Riyadh international book fair will be inaugurated tomorrow.. 550 publishing houses from 32 countries will participate in the 10-day show to display about 200,000 titles. 90 Saudi publishing houses will participate in the book fair. On the fringes of the book fair, the persons who have positively contributed to enriching the literary movement and promoted press work in the Kingdom will be honored. The book fair will host some Arab literary men and intellectuals. --SPA