Hi @Vandana1 Tape reading was widely practiced in good old days when computer trading was not there. Around 1900 Tape reading was very famous.
Jesse Livermore was a great Tape Reader which he mentioned frequently in his shadow Autobiography book Reminiscences Of a Stock Operator. Tape reading is basically… Watching the price on a moving tape to take Buy Or Sell call. Just by watching the changing price movement on a tape you can able to know about mkt movement and your favorite stock movement and decide to Go-long Or Short.
But now a days also lots of Professional Traders practice Tape Reading.