These lectures give a more theory based approach, while the book is more based on discussing practical systems; now both are covering distributed systems as such.
Now the distributed system audio course on youtube is extremely accessible (i listened to them while taking walks with our dog)
The book is also great, Kleppmann is writing in a very accessible style.
This and Database Internals. I'm more of a sales engineer that continues to flirt with moving to engineering full-time. These two books have really opened my eyes to both better system design and implementation details.