No idea 😅 Great question though!! Here for the answers
I highly recommend’Eat Sleep Play Love’ by Dr Preeya Alexander. I was also recommended an older book, ‘The Baby Whisperer’ which I also found really helpful, but some stuff does feel a little outdated. This book hasn’t been updated because sadly the author died about 20 years ago in her 40s from cancer.
My holy grail was and still is What to expect the first year by Heidi Murkoff Very informative and helped me at times with my first and will definitely help me with my second 😊