A printed book or manual on handloading is a must for any one starting out in the craft. Not only for its “instructional” information but it’s just handy to have a quick reference or information in print in front of you while loading.
Years ago when many such as my self started out in shot shell or Metallic loading manuals like Lyman’s were the only way to learn the craft. Other than knowing other people involved, which I didn’t.
Internet,IMO, is an invaluable tool but doesn’t replace the printed word.
And while the Lyman is considered by many, my self included, the Bible of hand loading I’ve made a habit of keeping a variety of different publishers manuals on hand.