I like Delphi and FreePascal and Lazarus and have used all of them a little, now and then, to create some small personal and paid business apps, Delphi in multiple versions with gaps between versions, from 2 onwards until the 'Berlin' version, IIRC.
And yes, thanks, Marco, for making this book available. I had bought a copy of one of your Delphi books around the 3 to 5 version timeframe, cannot remember which version right now.
Also, I had downloaded your Object Pascal Handbook a few years ago, which is a great resource, because we devs need to know our programming language well too, not just the IDE or the libraries, which is what some book authors focus on. Thanks for that too.
Need to set aside some time to do some more Pascal work for fun and profit.
Here's some resources to get you started
There's a free book here: https://lp.embarcadero.com/Object-Pascal-Handbook-2021
and another here (pdf) (probably the best to start) https://www.marcocantu.com/edelphi/EssentialDelphi_1033_2020...
There's intro videos here https://www.embarcadero.com/resources/videos
They have a YouTube channel here, that has a lot of more in depth stuff https://www.youtube.com/c/EmbarcaderoTechnologies
There's some books by Nick Hodges (former delphi product manager) 'Coding in Delphi' and 'More coding in delphi' for more advanced stuff
The negatives with delphi are its been poorly marketed for years, and it costs money to use, though the community edition is available now. Object pascal is a bit dated imho, but what makes Delphi powerful is the components, there's 2 the VCL which is the original in windows only, then fire monkey which is the new cross platform one.
If you want to see components have a look at tmssoftware.com for some drag and drop components, you can even make web applications with Delphi with their web components (they cross compile to javascript)
You may want to ask these questions in the Free Pascal community, this stuff is too uncool for the HN crowd.
Object Pascal Handbook by Marco Cantu
Available to registered users of Delphi XE8, RAD Studio XE8, C++Builder XE8, and Embarcadero All-Access XE This promotional item are available on XE7 purchases made after January 1, 2015 and for XE8 purchases made after April 7, 2015.
That's the link, I guess.