From an AI search -
There are several books and other resources that offer guidance on how to be happy, including:
Happiness: A Guide to Developing Life's Most Important Skill
By Matthieu Ricard, a Buddhist monk, this book offers guidance on developing happiness.
Gateway to Happiness: A Practical Guide to Happiness and Peace
This book offers practical advice on how to increase happiness, peace of mind, and self-esteem.
The Finnish Guide to Happiness
By Melanie Dower, this book offers insight into the habits and structures that contribute to the happiness of Finnish people.
An Unconventional Guide to Happiness
By Mark Manson, this book discusses how happiness is a dynamic state that requires ongoing effort and commitment.
Grandma's Guide to Happiness
By Andrew Daddo and Stephen Michael King.
Some other tips for being happy include:
Focusing on the things that bring you joy
Connecting with others
Engaging in activities that give you a sense of purpose and fulfillment
Making a list of happy memories or things you're looking forward to
Changing your attitudes towards life, yourself, other people, and events and situations
According to an 85-year Harvard study, positive relationships are the number one thing that makes people happy, healthy, and helps them live longer.