This book explains slide creation techniques useful for business presentations. - Title: Slide Creation Techniques of Foreign Consulting Firms - Author: Shu Yamaguchi - Price: 1800 yen (excluding tax) - ISBN: 9784492557204 - Contents: 23 diagramming techniques Thank you for viewing. I accidentally purchased two copies, so I am selling one. I purchased it online and only unwrapped the packaging; I haven't opened the book. There is a line on the obi (sleeve), but it was there from the beginning, not something I added. It is new, but I have handled it once, so please understand before purchasing.