Explore the fascinating world of steganography in this comprehensive lecture. Delve into hidden messages, various hiding methods, and advanced techniques like JPEG hiding, MP3 sync, and LBIT hiding. Learn about file carving, Huffman compression, and zero-knowledge proofs. Discover the intricacies of port knocking, secret sharing, hiding the source, and cover channels. Gain valuable insights into the art of concealing information within documents and other digital media.