I think the best recommendation, rather than reading a book, is to actually use your spiritual abilities, as books by people who don't meditate will not teach you much. You could make this type of exercise a daily habit:
:arrow: Fall into a deep trance. (Eyes closed obviously, to shut out all distractions)
:arrow: Once you reached an appropriate level of trance, visualise yourself sitting in the akasha. From there, visualise a birth chart in front of you, one that has the characteristics you want to study.
:arrow: Move 'inside' the chart and reach the house that you want to to study.
:arrow: Focus on the energies in there. One by one, how they interact between them, etc.
:arrow: When you're done, clean yourself thoroughly.
Over time, this should make you more and more in tune with the nature of the energies and how they interact, so that you'll ideally be able to recognise patterns easily when reading a chart, and be able to give a good reading.
This is like a variation of the 'Merging consciousness' meditation. It can be done with all charts. All it takes is for you to memorise them, which is really easy anyway. It works even if you only remember one part of it, then open your eyes back to look at another part. It doesn't need to be perfect. All you know is a good amount of focus, to gradually develop energy sensitivity, and to set the clear intent of entering that chart.
Remember that when you enter someone's chart, it's like entering their soul, differently from casually studying made-up placements. Extensive cleaning is needed afterward, to remove any leftovers of their energies.
I think the mind palace memory technique is derived from the merging consciousness practice. Thinking of that, you can basically walk around someone's chart. Everyone will experience the energies differently. Some may even see the planets as people inside of a house/building, etc, with the building having particular characteristics depending on the sign on the cusp. An aspect can be seen as a relationship between two people, so seeing how these people interact between them will give you insight into how the energies interact.
With transits and other tools of prediction, the experience becomes more complex, intense, and colourful.
I may try this method myself sometimes.