短语讲解：

1. I didn’t necessarily want to tell him how to draw because I wanted it to be exactly what he did and it to come from his thoughts and his creativity.

come from 来自
例句：Ambient noise may come from any direction.
外界噪声可以来自任意方向。

2. He may speak of unrelated subjects.

speak of 提起
例句：Reading is the only hobby I can speak of.
读书是我唯一值得一提的爱好。

3. And this book just might help a lot more people to understand, encourage and support Burnie and others with autism.

a lot of 大量
例句：He is a man with a lot of experience under his belt.
他是个阅历很深的人。