Guide to skill book locations

Where to find all the books. Spoilers, obviously but if you just can't find that one book, this guide is here for you.

Misc

I highly recommend putting your first perk point in concentration. It makes finding hidden objects like this and dropped weapons much easier.

Some book descriptions are funny if you read them.
How does a book on plants give you an edge in mining?
A book by the famous alchemist, Nicolas Flamel gives you.... sewing advice?

Crafting

Book not found

Fire Starting

On a rock near two dead explorers.

Red island

Unlocks Wood Chips recipe

Cooking

Book not found

Skinning

Book not found

Throwing

Deep in the Windy Island cave, near a dead explorer.

Windy Island

50% chance weapon takes no damage when throwing.

Shooting

Near a dead Spaniard

Island of Hope in a canyon.

50% chance ammo takes no damage when shooting

Strength

Inside the half boat on the shore.

Copper Island.

Can carry items while sprinting.

Athletics

On a rock in the middle of a small pond.

Island of Hope

50% reduced fall damage and injury

Swimming

Inside the sunken ship.

Island of Hope, sunken ship

Can sprint while swimming

Drying

Found outside under a broken windmill.

Windy Island

Dried food does not cause food poisioning

Mapping

In a mapping tree

Copper Island

Unlocks Mapping Tower recipe.

Sailing

Left passageway of the Santa Maria

Santa Maria

Duration of fast travel is reduced by 50%

Fishing

Under an archway, near a chest.

Island of Hope

Unlocks Leaf Bait recipe

Repairing

In a tent at the abandoned explorer's camp.

Copper island

Reduced repair duration also applies to vessels.

Medicine

Inside the Lonely Rock, right before you ascend.

Lonely Rock

Living Water cures diseases.

Gathering

Near debris under an archway, close to the fire starting book.

Red island

Reduce mining energy drain by 50%

[Lord Skarra]

Guide needs updates... Strength new book on Crocodile island will give you the ability to hold 3 logs