Language is power; it is not only the mechanism through which we communicate, think and express our emotions and ideas; it shapes us in the culture we are born into. It therefore goes without saying that language delay affects holistic development leading to isolation, social withdrawal and poor academic achievement. Babies develop language in stages, the pre-linguistic stage or the age from birth to 1 year is the stage where babies communicate through crying, cooing. and gesturing, 2-month-olds pause as if to imitate "conversation." The second stage is the one-word stage, from 1 year to 18 months; It is usually at this stage that children say their first word, however they will continue to babble throughout this stage. They also learn to answer questions and by the end of this stage they should have a vocabulary of around 50 words. The third stage covers the age range of 18 months to 3 years, in which children use simple short sentences known as telegraphic speech; they may speak in a grammatical context, for example "mummy juice", however they oversimplify words such as using the word "dog" for both dogs and cats or using the word "feet" instead of feet. Two- or three-word sentences are usually formed around the age of two. By age 5 children are able to use more complex adult conversations such as conjunctions and their vocabulary should be around 2,000 words and they should be able to make up rhymes, songs and jokes. .By the age of six they should be able to alter their speech depending on who they are talking to. (Mukherji et al 2000)During the pre-linguistic stage Isabelle's language was disrupted as she was hidden from society and her mother was “both deaf and dumb” so Isabelle ...... middle of paper ..... . caliber therapist. Available: http://www.nhscareers.nhs.uk/details/default.aspx?id=288. Last accessed 13 February 2012.Hobday, R. (1999). How sunlight can prevent serious health problems. Available: http://lifestylelaboratory.com/articles/hobday/sunlight-prevent-problems.html. Last accessed 16 February 2012. Mukherji, P et al (2000). Understanding children's language and literacy. Cheltenham: Nelson Thornes. 44-54.Trevarthen, C . (2011). Video bank: Professor Colwyn Trevarthen: Relationships. Available: http://www.ltscotland.org.uk/video/p/video_tcm4637506.asp?strReferringChannel=search&strReferringPageID=tcm:4-615801-64. Last accessed 10 February 2012. Trevarthen, C et al. (2003). Infant intersubjectivity: research, theory and clinical applications. Available: http://onlinelibrary.wiley.com/doi/10.1111/1469-7610.00701/pdf. Last access 16 Feb 2012.