I guess I for one am a little confused as to why you need books on building materials and construction when you are taking a RE course?
You will soon discover that while we don't need to know everything that a builder knows, people do expect us to know something about what we're selling. Sooner or later, an Agent will need to know the difference between joists and rafters; sashes and moldings; girders and bridging; mullions and muntins; stringers and lath . . . . et cetera.
We don't need to be Architects either; but we sure do need to know the variations in local building Styles and Framing echniques like Platform, Balloon or Post and Beam.
The same holds true for the Law; though we don't have to be Attorneys . . . . we certainly have to be able to read and interpret a complex contract.
And we don't have to be Plumbers, or Electricians; but we need to know the differences between Amps, Ohms, Volts and Watts.
I don't claim to be a Historian or Sociologist; but prospects expect us to be VERY knowledgeable about the territorial areas we work and their demographics.
We don't have to be Surveyors; but we need know how to accurately read a Survey's Metes and Bounds.
We don't have to be certified in any of these professions . . . . but people expect us to have an awful lot of knowledge in our heads and to be able to speak intelligently about every one of them; plus carry the skills of an Arbitrator and Psychologist and employ them when necessary to close a transaction.
Jacks of all trades, and Masters of none . . . . that's what we are. Every little bit helps. Hopefully, we don't have to do all of them everyday; but every Little bit helps. We have to be prepared to talk a good line . . . . regardless of who we're speaking with . . . . and
we usually can't fake it.