My idea was for it to be amusing small and short, very similar to 'loo books' which are small and have short statements, words and/or animations on each page.
I am going to look into the presentation, animation, style and tone of voice in books like 'the little book of...'.
Simplicity - the cover, could do something like this but have 'work' and 'play' and the tick boxes
Image and simple text - variety of sizes. Could split the page in 2 - drink vs graphics or a cup full of typography...
An example of little quotes/tips used
A book full of useless information
Use images in some of the typography and also *'s.