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Pearson has made a commitment to make this website accessible for all users. complies with recognised accessibility standards and has been built to conform with the Web Accessibility Initiative's (WAI) standards.


Wherever possible we have provided a HTML version of PDFs on this site.

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Find out more about Adobe PDFs and accessibility

Online tool for converting PDFs to HTML


This site uses cascading style sheets for visual layout. Users can change the style sheets in their browsers to make viewing easier for their individual requirements. All pages on this site use structured semantic markup. This site uses only relative font sizes, compatible with the user-specified "text size" option in visual browsers. If your browser or browsing device does not support style sheets at all, the content of each page is still readable.

Colors and Contrast

As an aid to readability we have tried to ensure a good level of contrast between text and background colours. You may also browse the site using a 'High Contrast Theme' or the 'Standard Theme'. This option is always available from the footer.

On certain browsers you can override our design and use your own preferred colour scheme. Instructions on how to change background and font colors for common web browsers appear below; for other setups you will need to consult your browser's help pages.

Microsoft Internet Explorer

  • Select Tools from the menu bar
  • Select Internet options
  • Select the General tab
  • Click the button marked Accessibility
  • To remove background and font colors, tick the checkbox labelled "Ignore colors specified on web pages"
  • Click the button marked Colors in General tab
  • Choose your own preferred colors for text, page background and links
  • Un-tick checkbox called “use windows colors” and click OK

Mozilla Firefox

  • Select Options from the Tools menu
  • Click on the Content button
  • Under the "Fonts and Colors" sub-heading, press the button labelled "Colors..."
  • Make your selections
  • Un-tick checkbox “Allow pages to choose their own colors, instead of my selections above” and click OK

Further Information

Supplementary information on these accessibility issues can be found at the Web Accessibility Initiative