Somewhere around the beginning of the twentieth century, Susan Cain argues, Americans changed from a "culture of character", where the ideal self was serious, disciplined and private, to a "culture of personality" where people began to focus more on how other people perceived them. This, in Cain's argument, resulted in the emergence of the extrovert ideal, an uncomfortable development for the introverts of the modern world.

This wide ranging and thoroughly researched book is well written and grounded in research based data. The author gives an account of studies into strategies that have helped high-profile introverts make significant public impact and drive through success in all sorts of enterprises - Eleanor Roosevelt and Warren Buffet are among the more well know examples. I found the story of Harvard Professor Brian Little, an award winning teacher and sought after public speaker, who recognises his need to find "restorative niches" to balance the emotional expenditure of a public performance particularly interesting.

Cain includes a section on the impact of introversion on relationships, communicating with "opposite types" and a chapter on introversion in children. Although predominantly focussed on America the author discusses introversion in other cultures and there are accounts of the issues that Asian Americans face in their workplaces.

If, like me, you are an introvert, you might find a couple of hours with this book a "restorative niche" in itself. At the very least you can rest your forehead on its wonderful, smooth, quiet, white cover for a few minutes to recharge! Highly recommended for some people....