He attended the Albert Einstein Gymnasium for primary and secondary school, before taking an internship in a copper mine in Chile and then serving Germany with 18 months of civil service Zivildienst, delivering food to the elderly.
Lagemann is the co-founder of The Magazine furniture chain in California and began his sculpture career in 2005.
In 2001 he debuted the company website, and began selling the furniture online nationally, in addition to his brick-and-mortar stores.
His work consists largely of life-sized sculptures of the human body while pursuing activities like swimming, yoga, climbing, or running.
[1] The Huffington Post has stated of Lagemann that his sculptural work is descendant of Pablo Picasso, especially his creation of abstracted figurative sculptural work, writing further that, "He has an inventive and innovative iconic style, fashioned from hundreds of cut metal squares that he precisely welds together to form a whole.