We are aware that Kingfisher is releasing a new edition of their science encyclopedia in October 2017. We do not know yet what those changes will be, so we do not know how this will affect our programs. In the past, new editions have not affected page numbers.
For now, both the 2006 and 2011 editions do coordinate with our programs. If you are unable to locate one of those for a reasonable price, you can download this chart which coordinates the DK Encyclopedia of Science with Biology for the Logic Stage. The DK Encyclopedia of Science is already scheduled as an additional resource in Earth Science & Astronomy for the Logic Stage and as the main spine for chemistry and physics.