Speech and Language Therapy Information!

Your trusted source for best quality information about speech, language and communication needs. 

Comprehensive information on all aspects of human communication and speech therapy, including speech, language, voice, stuttering and much more.....

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Speech development, speech disorders, phonetics, phonology, articulation, speech perception...and much more!


Language development, acquisition, verbal language, syntxx, morphology, pragmatics...and more!


The communication chain, conversation, body language, communication disorders...etc...etc


Voice development, voice disorders, voice care for adults and children, how to improve vocal habits, voice assessment and measurement...and so much more!


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Easy to read human speech, language and communication needs articles written in Plain English. Includes free printable PDF files for use by clinicians, parents, carers, teachers...etc.

A selection of our articles...


allophones 101 Velarization header

We have noted elsewhere (see Approximants) that the lateral /l/ is formed by the tongue tip creating a complete closure at the alveolar ridge and the air stream being allowed to escape over the sides of the tongue laterally. This particular configuration appears in words such as look /lʊk/, silly /sɪlɪ/ and like /laɪk/. However, […]

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Step 5: Ask Questions

ca101 step 5 Ask Questions

Pose research questions Now, we indicated (see Conversation Analysis) earlier that, whilst CA resists premature theorizing, the interplay between repeated listening to audio recordings and examination of transcriptions leads to the generation of research questions. So, having identified that Jim appears to be only taking minimal turns at talk, and considering the definition of conversation […]

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plosives ESS101

Plosive consonants are oral sounds, i.e. the soft palate is raised so that air from the lungs cannot pass upwards into the nasal cavity. The air can, therefore, only escape through the oral cavity. All plosives are produced by a complete obstruction of the airflow at some position in the mouth, for example by the […]

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Featured Articles


Human Communication 101 is a series of introductory texts providing high quality information on selected aspects of human communication, with particular emphasis on speech, language and communication needs.

The Causes of Stuttering

The causes of stuttering are unknown but neurological development, parental reaction, trauma and a predisposition to stuttering have all been suggested.