What the poet saw when he entered the library door:

Books galore:
When the poet entered the library door, he saw books galore all around him. There were shelves lined with books of all shapes and sizes, inviting him to explore their contents. The sight of so many books filled him with a sense of wonder and excitement.

Tables:
In addition to the books, the poet also noticed tables scattered throughout the library. These tables provided a place for readers to sit and delve into the books they had chosen. The tables were sturdy and well-worn, a testament to the many readers who had sat there before him.

Chairs:
To accompany the tables, the poet saw chairs placed strategically around the library. These chairs were comfortable and inviting, beckoning him to sit down and lose himself in the world of books. The poet appreciated the thoughtfulness of having comfortable seating available for readers.

Shelves:
Finally, the poet's gaze fell upon the shelves that lined the walls of the library. These shelves were filled to the brim with books of every genre imaginable. The poet could not help but marvel at the sheer number of books that surrounded him, each one waiting to be discovered and enjoyed.

In conclusion, when the poet entered the library door, he was greeted by a sight that filled him with delight - books galore, tables, chairs, and shelves all beckoning him to explore the wonders of the written word.