1. Encoding involves two main processes - automatic processing which unconsciously encodes incidental information, and effortful processing which requires attention and conscious effort to encode new information through techniques like rehearsal.
2. Mnemonic devices like chunking, visualization, and the method of loci can help increase the effectiveness of encoding by organizing information or creating vivid mental images.
3. Rehearsal is most effective when distributed over time using the spacing effect rather than cramming, and giving meaning to information through techniques like mnemonics can also aid in long-term retention.