Brent Schlender and Rick Tetzeli’s upcoming biography on Steve Jobs — Becoming Steve Jobs: The Evolution of a Reckless Upstart into a Visionary Leader — has revealed some interesting and unknown incidents from the life of the ex-CEO of the Apple.

Brent had interviewed Steve Jobs multiple time during his lifetime, and become close friends with him, while Rick Tetzeli is an editor at Fast Company.

It also paints a very different picture of Jobs — something that no other movie or book on him has done till now. It shows how deeply Steve cared about Apple’s employees, their family, and how he refused to accept a liver from Tim Cook, despite many calling him selfish. Here is an excerpt from the book that proves how deeply Steve cared about his employees.

“The Steve that I met in early ’98 was brash and confident and passionate and all of those things. But there was a soft side of him as well, and that soft side became a larger portion of him over the next 13 years. You’d see that show up in different ways. There were different employees and spouses here that had health issues, and he would go out of his way to turn heaven and earth to make sure they had proper medical attention. He did that in a major way, not in a minor, ‘Call me and get back to me if you need my help’ kind of way.”

Another excerpt from the book reveals how Jobs pestered Cook into having a social life.

“The Steve I knew was the guy pestering me to have a social life, not because he was being a pest, but because he knew how important family was in his life, and he wanted it for me, too,” says Cook, who came out as a gay man late in 2014. “One day he calls my mom—he doesn’t even know my mom, she lives in Alabama. He said he was looking for me, but he knows how to find me! He talked to her about me. There are lots of these things where you saw the very soft or caring or feeling or whatever you want to call it side of him. He had that gene. Someone who’s viewing life only as a transactional relationship with people…doesn’t do that.”

Another excerpt from the book reveals how Steve used to work hard, and made sure that no one treated him as if he was sick.

In his last years at Apple, Steve did everything he could to have people there treat him as if he were not sick. “He was working his ass off till the end, in pain,” remembers Eddy Cue, Apple’s senior vice president of Internet software and services. “You could see it in the meetings; he was taking morphine and you could see he was in pain, but he was still interested.”

The book also includes the conversation that Jobs had with Cook when he told the latter that he should be the CEO of Apple. The excerpt can be found below:

On August 11, a Sunday, Steve called Tim Cook and asked him to come over to the house. “He said, ‘I want to talk to you about something,’ ” remembers Cook. “This was when he was home all the time, and I asked when, and he said, ‘Now.’ So I came right over. He told me he had decided that I should be CEO. I thought then that he thought he was going to live a lot longer when he said this, because we got into a whole level of discussion about what would it mean for me to be CEO with him as a chairman. I asked him, ‘What do you really not want to do that you’re doing?’

“It was an interesting conversation,” Cook says, with a wistful laugh. “He says, ‘You make all the decisions.’ I go, ‘Wait. Let me ask you a question.’ I tried to pick something that would incite him. So I said, ‘You mean that if I review an ad and I like it, it should just run without your okay?’ And he laughed and said, ‘Well, I hope you’d at least ask me!’ I asked him two or three times, ‘Are you sure you want to do this?’ because I saw him getting better at that point in time. I went over there often during the week, and sometimes on the weekends. Every time I saw him he seemed to be getting better. He felt that way as well. Unfortunately, it didn’t work out that way.”

Becoming Steve Jobs: The Evolution of a Reckless Upstart into a Visionary Leader will go on sale on March 24th.