A specialized book containing safety guidelines for welding technology and details on welding methods. - Title: New Gas Welding Safety - Author: Gunma Prefectural Center for Industrial Technology - Content: Safety guidelines for welding technology - Title: Welding Methods - Editor: Compiled by Gunma Prefectural Center for Industrial Technology I am listing this item as I am decluttering. There are some markings from highlighters and pencils. (See photos 4-5) There is no damage or dirt inside the books. Please judge the condition from the photos. The "Welding Methods" book has some signs of age and has turned brownish due to sun exposure. As this is stored at home, please refrain from purchasing if you are sensitive to such conditions. Please understand that this is a used book before purchasing. *No pets or smokers in the household. Thank you for looking.