what is the best strategy to develop the communication skills of children with autism?PECS or Makaton signs?

my friend has two children with autism.she just wants to know which is the best strategy to develop their communication skills.

PECS stands for Picture Exchange Communication System. The picture symbols most commonly used are Picture Communication Symbols (PCS) and are made by Mayer Johnson’s Boardmaker software. PECS uses picture representations of object, action, person, and attributes (descriptions). The picture representations can be in the form of PCS, photographs, Clip Art, magazine pictures, product labels, etc… Some children may do better using object representations instead of pictures but the exchange system remains the same.

The PECS training is a 2-3 day training for SLPs, teachers, and parents so it’s difficult to give you detailed information in YA. If you would like more ideas/tips how to implement PECS properly, please e-mail me. I will be happy to help.
For PECS workshop and product information, go to http://www.pecs.com/index.php

I have used Makaton in the past and am not a big fan of it. I find individuals with Autism learn best with visual supports in the form of pictures &/or written words. As a speech-langauge pathologist, I would not recommend using PECS alone. A multimodal approach is much more effective for functional communication. Communication boards, picture schedules, social stories, repetition, literacy-based instruction, sign language/gestures, etc… are all beneficial in increasing expressive, receptive, and pragmatic language skills.