The "Private 1970-1979 Collection" by Dian Hanson and published by Taschen comprises five volumes focusing on men's interests in the realm of adult topics during the 1970s and 1980s. This collection offers a unique glimpse into the provocative and often controversial culture of the era, showcasing a variety of content that challenges and entertains readers on subjects related to sexual exploration and lifestyle choices. With a specific focus on the years 1970-1979, these volumes provide a comprehensive look at the diverse and evolving perspectives of the time period.