Espresso Coffee: Professional Techniques by David C. Schomer

Key features: A bible for espresso technique Tremendous training tool for the beginners A resourceful book for coffee professionals, barista and coffee lovers

Espresso Coffee: Professional Technique is truly a very useful book in all respect. The author being the owner and chief roaster has provided variables to make perfect coffee. He studied espresso making for decades and shared some of his experiences to make you understand the best technique.
He goes further, discussing the importance of perfect milk frothing and steaming which directly influences the taste of espresso. After going through this book the palate of the coffee you brew will not be the same.