Evelyn same here it took me a month to start learning anything about the witness here! Sure! In summary, witnesses are among the most powerful users in our community! Witnesses build the blockchain for Steem processing all transactions and creating all new Steem along with deciding on which updates to apply and more. Will you read the full guide I made at https://steemit.com/witness-category/@jerrybanfield/steem-witness-basic-training because it explains what a witness is in more detail and has exact steps to get started as one!