We should have known better, but we upgraded our typesetting software and the inevitable happened: we ran into some serious problems which caused an unacceptable loss in diagram quality.

We've since resolved the issues, and the diagrams look better than ever, but the loss in production time set back our scheduled electronic release of Richard Pask's Key Themes from mid-April to sometime in May.

We apologize to our readers for this delay. We can only promise that the wait will be well worth it.