After removing the cover by heating the hot melt with a bookbinding machine, it has been cut with a paper cutter. Because it has been cut, the condition is listed as "poor overall," but there are no markings and the condition is good. We are looking forward to purchases from those who understand that the book has been cut. Feature 1 The Security Officer's Textbook for the First Year Just knowing this is enough Feature 2 Cultivating "Tomorrow's Security Personnel" Coverage of universities and technical colleges' educational settings Special Report Photoelectric Fusion Intensifies Competition NTT aims to resolve bottlenecks in next-generation network construction The Basics of Network Technology Learned in the Network Specialist Exam Responding to Network Failures Thank you for viewing.