The Valley of Fear is based on that case. Erle Stanley Gardner , the Perry Mason Series - Search out the earliest books. Like with the Sherlock Holmes series, they explain and develop the characters. And as with the Holmes stories, I particularly enjoy the unintended glimpses into how life was a half-century ago. Here is another good Erle Stanley Gardner Page, which also lists the books by publishing date.
Various classics are classics for a reason.
In King Arthur's Court , The Prince and the Pauper , The Call of the Wild , White Fang . Be sure you find them in unabridged editions, or you'll miss half of the enjoyment. Jack London , author of The Call of the Wild and White Fang , wrote many other excellent books and short stories. A favorite short story of mine is To Build a Fire . I'm not generally a fan of poetry, but I do enjoy the work of Robert W. Service .