I can’t think of any ID books I’d recommend. And considering I’m helping a new ID hire develop his skills, I wish that weren’t the case.
My recommendations would instead be:
- find some broken things and dismantle them, paying close attention to the external surfaces which are designed and modeled for manufacturing
- find some broken mechanical things, dismantle them and try to reassemble them; paying attention to the mechanics which makes the device function (don’t worry about electronics, as increasingly they tend to conform to shape instead of driving shape)
- decide what kind of sketching to which you aspire and then practice it. Transportation designers tend to be more accomplished sketch artists, but some of the more famous designers within the ID field (as opposed to entertainment design) are actually not very good at sketching (in 2D; though they might be great at building foam core mock-ups or sculpting in foam).
Generally transportation designers tend to have a lot of “search lines” in their drawings and so the line thickness and darkness tends to vary more, while general product designers tend to use fewer search lines and draw more deliberately. Some people (myself included) went to good transportation schools but work in product, and so we tend to mix styles as necessary; depending on client and deadline. Toy designers, from my experience, tend to have a much more cartoonish style with heavy bold outlines.
Core77 is a good resource, as mentioned above. I think there are some old threads specifically about good ID books.
Best of luck.

Berkey even better, though the prices of his books online are astronomical (much like the out of print Mead books).