A really useful starting point in understanding the PropTech field is from the consultancy-university report authored by Andrew Baum at Oxford University https://www.sbs.ox.ac.uk/sites/default/files/2018-07/PropTech3.0.pdf
Influential books #100 Companion to Real Estate Development Edited by Graham Squires, Erwin Heurkens and Rick Peiser
If you need a companion to understand real estate development this collection is the best around
Influential books #99 International Approaches to Real Estate Development Edited by Graham Squires and Erwin Heurkens
First class collection of real estate development literature, with an international framing.
Influential books #96 Economics and property by Danny Myers
Wonderful introduction to economics in the field of property from my old room mate.
Influential books #80 Urban Economics and Real Estate by John McDonald and Daniel McMillen
Useful economics text on real estate in cities , with examples helping to demonstrate the theory and practice
Influential books #76 Real Estate Investment by Andrew Baum
Leading text on real estate investment as an asset class, with international cases that illuminate strategic theory that is used in practice