This book majorly covers the following topics:

Beginning of pandemic and measures we took to cope up with it until vaccines were produced.
It covers why we need vaccines and how vaccines are made.
It provides details on how vaccines work on the human body.
Types of vaccines that are clinically approved so far (especially in India and USA).
Details about approved vaccines like manufacturer, type, dosage, effectiveness, side effects etc
A section of this book also answers the most commonly asked questions regarding Covid -19 vaccines.