Jacob Roloff has written a booklet which he is selling online.
It is available on Amazon.com or Etsy
Jacob describes it as:
VERBING is my first foray into official compilation of my writing. It's split into 3 parts, subtitled: "Ignorance", "Frustration", and "Revelations". The format is essentially 3 short essays on the subject of my growth spiritually, intellectually, and in the public eye. This is my exploratory experiment with writing to get my feet wet with the process and establish the subject(s) I would like to write on in the future. This is a BOOKLET.
I've formatted for regular sized phones. Layout may look funky on tablets and kindle readers.
He also discussed it in an Instagram post: