LONDON -- English graphic designer Storm Thorgerson, whose eye-popping album art for Pink Floyd and Led Zeppelin encapsulated the spirit of 1970s psychedelia, died Thursday. He was 69.In a statement, Mr. Thorgerson's family said his death "was peaceful and he was surrounded by family and friends." The statement gave few further details but said Mr. Thorgerson, who had a stroke in 2003, had been ill for some time.Even those not familiar with Mr. Thorgerson's name have probably seen his work on vinyl collections and CD racks. He was best known for his surreal Pink Floyd covers, which guitarist David Gilmour said had long been "an inseparable part of our work."Some of Mr. Thorgerson's covers -- the image of burning man in a business suit on Pink Floyd's Wish You Were Here and the stark prism on the band's Dark Side of the Moon -- have become icons in their own right.He is survived by his mother, son, wife and her two children.