Regarding the actual cover proposition currently being considered,...
As an Advertising & Graphic Design instructor, this is what I would suggest to one of my students in preliminary Critique session.
* Use of colors more interesting, earthy but still lively, and images/illustrations organized yet separate enough to be clear.
* However, comes off as more a probable kids' book rather than something which would appeal to adults looking to further their education and experience levels.
* Wonky ALL CAPS type font looks random and does not give ability to fine tune or highlight key concepts (So, for example, I would advise a graphic design student to consider either leaving out the throw-away connectors (the, to, by) or making them lower case.
* Then look at your text arrangement --- clusters and breaks --- and think about how your brain processes things. So, putting your key concepts together on single lines is likely to be clearer and stronger:
* SKIP
* Develop your
* SKills to Inherit Property
*
* by Paul Wheaton
* & Mike Haasl
* Illustration, layout, etc. may fly as is otherwise, but would at least consider adding a little more perspective, not quite so flat/boxy/ primitive, a few more organic details, randomize & cluster some of the tree fruits --- and maybe make the tractor "face" a little less grumpy/menacing 🚜 😎
More than 2 cents here, but FWIW, and take what you like...
