Horse Ownership
Equine Reproduction and Broodmare Management (allows you to own more pregnant mares at a time)
Basic Horse Management, Intermediate Horse Management, Advanced Horse Management, Master Horse Management, and Grand Master Horse Management (allows you to own more horses)
Stallion Handling (allows you to have more stallions up for stud at a time)
Training
Agility Training (increases your ability to do agility training)
Balance Training (increases your ability to do balance training)
Intelligence (increases your ability to do intelligence training)
Energy Saver (decreases the amount of energy used while training)
Movement Training (increases your ability to do movement training)
Speed Training (increases your ability to do speed training)
Stamina Training (increases your ability to do stamina training)
Training Techniques and Advanced Training Techniques (increases your ability to do general training)
Strength Training and Strength Play (increases your ability to do strength training)
Tempo Training (increases your ability to do tempo training)
Apprentice Trainer (currently doesn't do anything, the feature hasn't been fully developed)
Competition Management
Show Management and Event Management (allows you to create more competitions)
Show Coordination and Event Coordination (allows you to create a higher level competition)
It increases your abilities in the game like allows you to own more horses and train more efficiently.
Go to "Menu"
Click on "Player"
Click on "Skills"
Select which of the skills you wish to look at.