ali aza is good, but some others were facing problems to find the book they wanted. well, the net was not complete yet, but it was good . the books i wanted and i couldn't find a series of them. the diversity of booths is minimal the academic field left less. there was a list of booth addresses, which made it easier to find the desired hair publishing booth , but there was no application that could easily find the address of the booth . i am searching for a book. i am looking for other people's comments. if i find a suitable book, i will definitely buy it. they were complaining about the high price of the book, considering that the price of the book has been fixed for some time, and now why do you deserve to be able to get it , this issue is not possible. very good publications. it was, but in some places, i could not connect to the network buy what you want because of the high prices, 150, 200, 300 , and the fact that the discount was 10%, it is too much for us , the price reduction is high and the discount is very expensive. this confusion of the book, which is 50