So, I was basically just getting back into reading for fun after years of college textbooks, and someone handed me a copy of 'Holes' by Louis Sachar. That was the perfect push. The sentences are straightforward, the plot moves at a clip, and you're not getting bogged down with overly fancy vocabulary. It's clever, has a mystery, and a great sense of justice.
From there, I naturally slid into 'The Giver' and some of the shorter Roald Dahl books like 'Matilda'. They're written with such clarity and wit that you barely notice you're 'reading an easy book'. They treat you with respect while keeping the language accessible, which is a hard balance to strike.
A lot of people recommend young adult stuff for beginners, and that's fine, but don't sleep on some of these middle-grade classics. They're crafted to be engaging for a developing reader, which makes them excellent for anyone rebuilding that stamina.