I'm frequently asked by organizations in my business consulting area what are the best books their employees should read and refer to. Honestly, there are a lot of good books out there. And unfortunately, there are millions of stinkers out there too.

Today, everyone thinks they can write a book. But most of them suck (hey, it's my opinion).

Here are the three which have withstood the test of time and to this day influence millions of executives and employees throughout the world:

How to Win Friends & Influence People

By Dale Carnegie.

This is the bible — buy it and live it. This grandfather of all people-skills books was first published in 1937. It was an overnight hit, eventually selling 15 million copies. How to Win Friends and Influence People is just as useful today as it was when it was first published, because Dale Carnegie had an understanding of human nature that will never be outdated.

The Magic of Thinking Big

By David Schwartz.

Long regarded as one of the foremost experts on motivation, Schwartz will help you manage better, earn more money, and — most important of all — find greater happiness and peace of mind. He proves that you don’t need to have an innate talent to attain great success — but you do need to learn and understand the habit of thinking and behaving in ways that will get you there.

Linchpin — Are You Indispensable?

By Seth Godin

Linchpin is a most unusual, well-organized, concise book about what it takes to become indispensable in the workplace – whether you work for someone else (at any level) or are self-employed. It’s about how business has rapidly changed and how treating employees like factory workers (or doing your job like one) doesn’t work any longer. We must make choices and take action to “chart our own paths” and add value that others do not.

We cannot wait for a boss or a job description to tell us what to do, rather we must just take the initiative ourselves. Only then can we become indispensable “linchpins,” rather than replaceable “cogs.” ”You don’t become indispensable merely because you are different. But the only way to become indispensable is to be different. That’s because if you’re the same, so are plenty of other people.

I recommend these three books DAILY to my clients.

Go out and buy them for your iPad or even better, pick up the audiobook and devour it.