Donovan's sunshine haze casts a glow over the work of peers and acolytes. Nick Drake's intricate guitar work and Cat Stevens' naïve folk show the influence of their fellow troubadour, while T. Rex's glam swagger channels his flamboyance. And the enchantingly trippy interludes of modern psych-pop acts like Devendra Banhart, Of Montreal, and Neutral Milk Hotel recall Donovan's far-out vibe.