Steve Jobs cited taking LSD as “one of the most important things” in his life, reveals his biography.

The biography, released today, gives an insight into Jobs’ hippy side and drug use.

The Apple founder told writer Walter Isaacson during an interview for the biography: “Definitely taking LSD was one of the most important things in my life. Not the most important but right up there.”

Jobs said he used the drug to expand his creativity, claiming it “reinforced my sense of what was important – creating great things instead of making money, putting things back into the stream of history and of human consciousness as much as I could.”

Jobs is depicted as a scruffy hippy, who was pushed onto night shifts from his first job as a games maker at Atari because he never washed and didn’t wear shoes.

Isaacson said: “He was a pretty abrasive and in some ways cantankerous character.”

But Isaacson adds: “His ability to convince himself and others to believe almost anything, to bend any fact to suit his purpose. That was how he made a dent in the universe.”