If you are just beginning to explore the idea of coaching there are lots of sites out there which will give detailed descriptions of the process of coaching and it's history. Rather than repeat that all here we would simply recommend that the reader visits the website of the professional body for coaches www.coachfederation.org.
To find out more about the Achieve Unlimited 'take' on coaching, explore this section of our site.
If you would like a practical and RATIONAL description of coaching look at the voice of reason
If you would enjoy a more CREATIVE explanation of coaching look at the voice of creativity
If you would like to hear how CLIENTS describe coaching look at the voice of experience