This was more of an emotional read than I expected. I do recommend to read the trigger warnings beforehand. Because it was described as a funny book, I didn't expect it to deal with heavy topics as well. It is however dealt with in an amazing way.

I like to think about the human condition and existentialism and this book covers those themes elaborately. Those themes make a book more heavy and emotional. But, Matt Haig discusses these themes in a more funny and lighthearted way. This is among others achieved by introducing the sci-fi element.