Reddit mentions of DK Eyewitness Books: Castle: Discover the Mysteries of the Medieval Castle and See What Life Was Like for Tho

I hope you get some interesting replies to this. You probably need to clarify your meaning though; "castles from kingdoms".

For most of human history, Castles were more like a fortified house at the center of village, often where the villagers could take shelter if there was an attack. The vast majority of castles have very little living space square footage compared to what we see in movies. The walls surround a large interior space that is busy during peace times and haphazardly crammed with villagers during a siege.

There would have been a considerable amount of smaller, wooden structures that sprawled out and around the castle to provide support. Having cooking fires, and slaughter houses, and rodent attracting grain stores, and access to fresh water, and stables for animals, and facilities for disposing of animal waster, and space for hundreds of employees to sleep and live, all would happen outside the castle walls. Think of a castle instead as a center point of a large village and it's more likely to be an effective way of thinking about it.

That said, buy this book, https://www.amazon.com/Stephen-Biestys-Cross-sections-Castle-Biesty/dp/1465408800/

Despite it seeming being "for kids" it will probably have more info than any committed amateur might need to suss out what's going on in a castle.

Others that also look interesting.

https://www.amazon.com/Castle-Eyewitness-Books-Christopher-Gravett/dp/0756637694/

https://www.amazon.com/Year-Castle-Time-Goes/dp/1580137962/

I read that it was in the Loire Valley in the DK Eyewitness book Castle. In the glossary, it shows this gatehouse and identifies it as being in the Loire Valley.

Edit: That being said, I do want to thank you for identifying the city that this is located in.

As far as books, the DK Eyewitness books are pretty good for basic information. As they are meant for children they are picture-heavy but the pictures are very informative and the the text is usually tops.

As far the medieval era, they have:
Medieval Life,
Castles,
Knights,
as well as Arms and Armor

Another good picture-heavy, if a bit dry, book, cheap too, is Daily Life in Medieval Times: A Vivid, Detailed Account of Birth, Marriage and Death; Food, Clothing and Housing; Love and Labor in the Middle Ages

I also own The Writer's Guide to Everyday Life in the Middle Ages: The British Isles From 500-1500 But theere are very little pictures and skims over some things while going into confusing detail on some others.