What is self-esteem?

From the introduction of 'Self Esteem workbook'

Before we embark on Chapter 1, let’s just clarify what we mean by self-esteem and what might be deemed low and high self-esteem. We’ll look at how self-esteem changes and what affects these changes. Then you get the chance to assess your own in different areas of your life and set yourself goals as to what you’d like to achieve by the end of the book.

We…