As I mentioned two weeks ago, in the occasion of Delphi's 25th anniversary I decided to go back to the roots and publish a book introducing the Delphi IDE based on content of my old Mastering Delphi volumes with additional material covering more recent changes. The ebook is fully edited for version 10.3 of Delphi.
Notice that the focus in not on developers with many years of experience with Delphi, but mostly new and less experienced users. But I'm sure that even those with more confidence and knowledge will find features here and there that they are not aware of.
At this time I've completed the initial review of the first chapter and just started the second chapter:
Chapter 1: A Form is a Window
Chapter 2: Highlights of the Delphi IDE
The current file is available in PDF format at http://www.marcocantu.com/edelphi/EssentialDelphi_1033_20200226.pdf
(Please don't even look to the hosting page, www.marcocantu.com/edelphi/, as this has not been updated in a long time)
I plan to keep publishing frequent updates, even with few new pages each time. Feedback is welcome, over email or as comments to this blog post.