What did Harry Potter buy in his first year?

Answer 1

Harry Potter bought his school supplies at Diagon Alley. These included his wand, cauldron, robes and various school books along with some other equipment and potion ingredients.

On the train to Hogwarts, Harry purchases a lot of sweets from the lunch trolley as he has never seen any of them before. He shares these with Ron Weasley.

Answer 2

First Year

The Standard Book of Spells, Grade 1 (Miranda Goshawk) (Charms)

A History of Magic (Bathilda Bagshot) (History of Magic)

Magical Theory (Adalbert Waffling) (History of Magic)

A Beginner's Guide to Transfiguration (Emeric Switch) (Transfiguration)

One Thousand Magical Herbs and Fungi (Phyllida Spore) (Herbology)

Magical Drafts and Potions (Arsenius Jigger) (Potions)

Fantastic Beasts and Where to Find Them (Newt Scamander) (Care of Magical Creatures)

The Dark Forces; A Guide to Self-Protection (Quentin Tremble) (DADA)

Second Year

The Standard Book of Spells, Grade 2 (Miranda Goshawk) (Charms)

Break with a Banshee (Gilderoy Lockhart) (DADA)

Gadding with Ghouls (Gilderoy Lockhart) (DADA)

Holidays with Hags (Gilderoy Lockhart) (DADA)

Travels with Trolls (Gilderoy Lockhart) (DADA)

Voyages with Vampires (Gilderoy Lockhart) (DADA)

Wanderings with Werewolves (Gilderoy Lockhart) (DADA)

Year with the Yeti (Gilderoy Lockhart) (DADA)

Third Year

The Standard Book of Spells, Grade 3 (Miranda Goshawk) (Charms)

Unfogging the Future (Cassandra Vablatsky) (Divination)

Intermediate Transfiguration (Emeric Switch) (Transfiguration)

The Monster Book of Monsters (Care of Magical Creatures)

The Standard Book of Spells, Grade 4 (Miranda Goshawk) (Charms)

The Dark Forces: A Guide to Self-Protection (Quentin Tremble) (DADA)

Fifth Year

The Standard Book of Spells, Grade 5 (Miranda Goshawk) (Charms)

Defensive Magical Theory (Wilbert Slinkard) (DADA)

Sixth Year

The Standard Book of Spells, Grade 6 (Miranda Goshawk) (Charms and DADA)

Advanced Potion-Making (Libiatius Borage) (Potions)

Confronting the Faceless (DADA)

A Guide to Advanced Transfiguration (Emeric Switch) (Transfiguration)

* We may not have the complete list for the third, fourth, fifth, and sixth year books, because only the first and second year supply lists are shown in the books.

* As Harry Potter didn't attend his seventh year at all, he didn't have to buy any seventh year schoolbooks.

The source of all of the above information is Harry Potter Wiki.

Answer 3

In his first year, Harry Potter buys robes, books, and Hagrid gets him an owl for his birthday. Later on in the story, the school buys him a Nimbus 2000 (broomstick).