Rothammels Antenna Book is available in a first English edition, translating from the 13th German edition. I have it on order from https://rothammel.com/Rothammels-Antenna-Book and look forward to opening up a copy and seeing what there is to see.
My current antenna placement is that I have either a home attic to put wires in, or a bicycle saddlebag to carry a portable antenna, or my backpack to carry an HT plus whatever makes the reception and transmission best when carried on my back.
Juan, posting to DX Engineering which sold copies at one point (not in stock): "This is a 1,600 [page] treatise on Antennas! It is more theoretical than the ARRL Antenna Book, but quite less than John Kraus classical textbook. It has a ton of data and practical information. It is a very good comprehensive reference book on antennas"
Frank K4FMH on https://www.amateurradio.com/rothamels-antenna-book-an-authoritative-source/: "I was researching HF loop antennas for an article. I was thrilled at the depth of coverage and the detailed citations and patents included. It greatly helped me organize my thinking on how to improve the design and deployment of an HF horizontal loop antenna."
Alex KR1ST on mastodon.radio , https://mastodon.radio/@kr1st/111794722432508536 "That is one of the best gifts you could have given yourself!! I have the German version and it's my go-to book on antennas. There are antennas in that book that many folks have never heard of and I have never seen described anywhere else."
Based on the size of the book this is a desk reference and not a handbook. Given the number of times I have done counterproductive things with antennas I am very much looking forward to absorbing some good sense and intuition and understanding.