Many people aren’t aware of this but an abundance of informative information on fitness/ strength training can be found in books. One of the books I recommend reading if you’re into or trying to get into strength training is “Starting Strength” by Mark Rippetoe. The author of the book has been around the fitness world since 1978 and a great wealth of knowledge can be consumed by reading his book. Rippetoe has also been a competitive powerlifter for roughly a decade and has helped many other athletes improve their performance.
In short summary, Rippetoe’s book is like the bible for lifters. The book explains specific barbell instructions and gets very technical. The book is great for novices because of the vast amounts of information on the various types of techniques in the book.