In 1989 Bob Mould took a left turn Already legendary before his 30th birthday for his noise-&-nuance work in Husker Du Mould had recently walked away from his old band He re-emerged with his debut solo album Workbook Filled with chiming acoustic guitars multitracked vocals pristine production & even a cello Workbook was both admired & questioned for Mould's perceived departure from his post-punk roots Three decades later the album has emerged as a key for understanding the nascent alternative rock genre & the concerns Mould would explore for the duration of his career Fusing post-punk sound & confessional lyrics with a richer emotional & musical range Mould's Workbook merged worlds that seemed unbridgeable at the time Alternative rock emerged from the wreckage of the 1980s & Workbook was a model for the genre's maturation Workbook serves its title in two ways-as a map for musicians to follow into a new mode & as a journal of Mould's struggle toward adulthood It opens conversations about rock identity spirituality authenticity & the perils & promises of mainstream culture Walter Biggins & Daniel Couch two critics who grew up with Workbook extend these conversations-through letters & emails to each other & through correspondence with Mould & Workbook's musicians & producers That crosstalk leads to through this seminal album a deeper understanding of "alternative rock" at the moment of its inception just before it took over the radio