Links and descriptions to follow
Delphi Books
Code Faster in Delphi
Code Better in Delphi
Coding in Delphi
More Coding in Delphi
Dependency Injection in Delphi
Mastering Delphi Programming: A Complete Reference Guide
Delph Programming Projects
Design Patterns with Delphi
Delphi Cookbook (3rd Edition)
Delphi High Performance
Expert Delphi
Delphi in Depth: FireDAC
Delphi Gui Programming with FireMonkey
Object Pascal Handbook
Hands-On RESTful API Design Patterns and Best Practices: Design, develop, and deploy highly adaptable, scalable, and secure RESTful web APIs
Delphi XE2 Foundations
MVVM in Delphi
Delphi Memory Management
Delphi in Depth: ClientDataSets
Delphi Handbooks (2009 - XE)
Cross-Platform Development with Delphi 10.2 & FireMonkey for Windows, MAC OS X (macOS) & Linux
Programming Books
Refactoring
Pragmatic Programmer (available as the 20th anniversary edition, also as an audiobook)
Code Complete 2
Headfirst Design Patterns
Clean Code
The Clean Coder
Clean Archetecture
Working Effectively with Legacy Code
Code: The Hidden Language of Computer Hardware and Software
Algorithms to Live By
Career Books
The Complete Software Developer's Career Guide by John Sonmez
Fiction
The Phonex Project
The Unicorn Project