There is wide range of resources for beginner crocheters online, both of my suggestions have clear step by step guides and a selection of follow on resources to keep you crocheting.

How to crochet: Step by step beginners guide with LoveCrafts
The ‘how to crochet for beginners’ page on the LoveCrafts website has many useful resources including video and step by step written instructions with stills from the video and links to further beginner videos and guides.

Beginner Basics on Crochet.com
Crochet.com have all the essentials to get you started with crocheting in video format along with step by step written instructions and pictures.
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