I haven't read the book, but grabbing the list of ten from a reviewer:

1. I am a whole child.
2. My senses are out of sync
3. Distinguish between won't and can't
4. I am a concrete thinker, I interpret language literally
5. Listen to all the ways I'm trying to communicate
6. Picture this! I am visually orientated
7. Focus and build on what I can do rather than what I can't do
8. Help me with social interactions
9. Identify what triggers my meltdowns
10. Love me unconditionally.

#1 I have no clue what they mean without reading it. #2 is clearly about sensory issues. In my experience, the vast majority of autistic people I've talked to report some sort of sensory processing differences. I doubt it's universal, but it's pretty close.

#3, #7 and #10 are things every child needs, regardless of diagnosis.

#4 bothers me because they seem to be equating concrete thinker and interpreting language literally, when those are not the same thing. I'm a very abstract thinker, and I often interpret language literally, simply because my social issues mean I lack the frame of reference the other person is assuming. Just because I don't realize how context affects what response a person expects to a question doesn't mean I can't imagine what it would be like to be a 2-dimensional being.

#5 is especially important for those kids who don't have good spoken language skills. In my experience working with disabled kids (including lower-functioning autistic kids), every child communicates in some way, even if they can't speak. They might communicate by facial expressions, by grunting and pointing, by echoing things which are indirectly related to what they're trying to say, or by the way they hold their shoulders, but every child communicates. And if you miss the cues, the child will probably have a meltdown.

#6 is definitely not universal. In fact, some people on the autism spectrum have nonverbal learning disability, which is pretty much the exact opposite of being a visual thinker. And some struggle with both visual and verbal thinking, while being a lot better at something else. Just because Temple Grandin is a visual thinker doesn't mean every autistic is, but for a lot of people, Temple Grandin is the only autistic person they've heard talk about her own experiences, even though there's a whole list of autistic autobiographies out there.

#8 my opinion depends entirely on how the author proposes to help. Most autistic people don't want someone saying 'what you are is wrong, and to avoid getting teased you'll have to change everything about yourself', which is the message many social skills training programs unintentionally convey. It certainly is useful to gain a better understanding of why NTs act the way they do, but that doesn't mean we have to act the same way, especially when we have good reasons to do otherwise. For example, I know wearing a parka on a hot windy day will make me look strange, but wind in my hair really bugs me, and the weight of my parka is comforting even when its heat isn't.

#9 is extremely important. I don't know what the book gives, but in my experience, the most common triggers of meltdowns in autistics are sensory overload, change in routine, and social conflicts. For nonverbal or minimally verbal individuals, communication failures also top the list. Not all autistics have meltdowns, but most do, because dealing with a world designed for neurotypicals can be intolerably stressful a lot of the time. The vast majority of autistic meltdowns can be prevented by the right environmental accommodations.