For your use, here is a small breakdown of some common essential oils used in aromatherapy.
From: Italy
Made From: Peel
Scent: Citrus
How to use: Massage, bath, inhalation
Note: Top
Mood: Balancing
Warnings: Avoid sunlight
From: Asia
Made From: Peppercorns
Scent: Spicy
How to use: Massage, Inhalation
Note: Base
Mood: Stimulating
Warnings: Very Strong
From: UK, Germany, USA, France
Made From: Flower heads
Scent: Green
How to use: Compresses, inhalation, bath
Note: Middle
Mood: Comforting
Warnings: Avoid in pregnancy
From: Algeria, Morocco
Made From: Wood
Scent: Green
How to use: Bath, skin care, inhalation
Note: Base
Mood: Elevating
Warnings: None
From: Italy, Syria, France
Made From: Flowers
Scent: Nutty
How to use: Massage, inhalation
Note: Top/Middle
Mood: Euphoric
Warnings: Avoid alcohol
From: Morocco, Spain, France
Made From: Leaves, needles, twigs, cones
Scent: Clear
How to use: Inhalation, skin care
Note: Middle/Base
Mood: Refreshing
Warnings: Avoid in pregnancy
From: Australia
Made From: Leaves, needles, twigs, cones
Scent: Sharp
How to use: Inhalation, massage
Note: Top
Mood: Refreshing
Warnings: Not with epilepsy or homeopathy
From: Europe
Made From: Seeds
Scent: Aniseed
How to use: Inhalation, Massage
Note: Middle
Mood: Stimulating
Warnings: Not for epileptics or in pregnancy
From: North Africa
Made From: Resin
Scent: Rich
How to use: Inhalation, Skin care
Note: Base
Mood: Purifying
Warnings: None
From: North Africa, China
Made From: Leaves
Scent: Floral
How to use: Inhalation, Massage baths
Note: Middle
Mood: Stimulating
Warnings: None
From: Asia, India
Made From: Root
Scent: Green
How to use: Skin care, baths
Note: Middle
Mood: Purifying
Warnings: None
From: Israel, Brazil, USA, Asia
Made From: Peel
Scent: Sweet
How to use: Skin care, massage
Note: Top
Mood: Uplifting
Warnings: None
From: France
Made From: Flowers
Scent: Honey-like
How to use: Inhalation, massage, baths
Note: Middle
Mood: Warming
Warnings: None
From: Egypt, india
Made From: Flowers
Scent: Heady
How to use: Inhalation, massage baths
Note: Middle
Mood: Warming
Warnings: None
From: Europe
Made From: Berry
Scent: Spicy
How to use: Inhalation, massage baths
Note: Middle
Mood: Cleansing
Warnings: None
From: Europe
Made From: Flowers
Scent: Floral
How to use: Inhalation, massage baths
Note: Middle
Mood: Soothing
Warnings: None