From publisher blurb:
Wardens of the Wild is a lorebook of all things elven. Within these 216 pages are the details of their rich history, culture and relations with the other races along with some excellent fiction. As a lorebook, it is a compilation of vast amounts of new and existing elven character options all in one easy to reference sourcebook. This title is compatible with both the Pathfinder(TM) and 5e Dungeons & Dragons(TM) RPGs.
The core elven subraces (High, Grey, Sylvan) have been redefined and reimagined.
New elven subrace: Umbral elves, a mysterious lost tribe of elves trapped on the plane of shadows only to return and find themselves unwanted
New elven subrace: Elflings, a mischevious breed of elf and myriad other fey creatures
Half-elves reimagined with options for the various elf bloodlines
Elven craftsmanship is detailed, providing information on elven masterwork items, elven item qualities and exotic elven equipment, weapons and armors
Over 100 elven feats, including new feats for the Song of Swords combat style and newly introduced Reverie feats
Dozens of elven traits
21 elven archetypes such as the Spider Champion (Antipaladin), the Forest Sentinel and Ley Line Channeler (Druid), Spelldancer (Magus), Limb Strider and Lone Wolf (Ranger)
2 new classes, the Rampart alternate magus class, whom excels at defending and the Thorn Warden, a druid/rogue hybrid, who brings the spirit of the forest to life in battle.
Dozens of new spells and magic items
Flora and fauna of the elven woods, including the great Arsae'Ladir trees of life, and elven Cu Sidhe hound