I am willing to negotiate the price as I want to dispose of it by the end of March. Please feel free to comment. Since the unit price of this item is low, it is easier to negotiate a price reduction if you purchase it together with other items. A book explaining data management and safety procedures necessary for scientific experiments. - Book Title: Jikken Dēta o Tadashiku Atsukau Tame ni (Handling Experimental Data Correctly) - Book Title: Zoku Jikken o Anzen ni Okonau Tame ni (Continuing to Conduct Experiments Safely) - Edition: 4th Edition Thank you for looking.