DotCommunist
So many particulars. So many questions.
The very earliest I remember was A Wrinkle In Time by Madeleine L'Engle, I loved that. Most of my childhood reading was sci-fi/fantasy ... all of the Alan Garner books (as mentioned), Tolkien, collected as many Star Trek books as I could find second-hand. Michael Moorcock, Roger Zelany, Frank Herbert, Ursula Le Guin; then later Gene Wolfe, Stephen Donaldson. I kept the books as well, some of these covers look very old/dated compared to the modern editions![]()
fuck I remember that! she went on to do Tesseract and others iirc.
cannae remember who did them but 'Dark is a colour' and 'Hoverlight' where great sci fi.
Shout out to my man Brian Aldiss for the first 'epic' sci fi series I ever read, the Helliconia cycle.
Try 
That's how I discovered the mysteries and refuge of behind the sofa.
).