I am looking for a complete German grammar book, where everything would be explained for all levels in English. At the moment I am finding a German grammar book with exercises or German grammar for specific levels. But I would prefer complete German grammar for all levels, the best with detailed descriptions (not the short books using a lot of grammar-specific terms - I am not the youngest to remember what such grammar terms mean, so I would prefer a bigger book, where everything is explained in detail.)
PS: I have seen some PDFs in another thread and even though they have a nice structure, they don't mention everything. The "German grammar in use" style is good for practicing grammar, but I am missing a reference book (preferably in English), where I can find answers to different grammatical questions I could have.