Bhagwat Puran - Bhagavata Purana - श्रीमद्‌ भागवत पुराण

The Bhagavata Purana ( भागवतपुराण ) also known as the Bhagavatamahapuranam, Srimad Bhagavatam (श्रीमद् भागवतम्), Srimad Bhagavata Mahapurana, or simply Bhagavata, is one of Hinduism's 18 great Puranas (or Mahapuranas, meaning 'great histories').
Originally composed in Sanskrit, this most studied, popular, revered, and influential Purana is an epic Vaishnava poem consisting of 18,000 shlokas (or verses) over 12 skandhas (or cantos). Its interconnected and interwoven narratives, teachings, and explanations focus on the forms (or avatars) of Vishnu particularly Krishna as the ultimate, primeval, transcendental source of the multiverse (including the demigods and gods such as Vishnu) – as well as the lives of his greatest devotees.

Bhagawat/Bhagavata Puran consists of :
प्रथम स्कन्ध
द्वितीय स्कन्ध
तृतीय स्कन्ध
चतुर्थ स्कन्ध
पञ्चम स्कन्ध
षष्ठ स्कन्ध
सप्तम स्कन्ध
अष्टम स्कन्ध
नवम स्कन्ध
दशम स्कन्ध
एकादश स्कन्ध
द्वादश स्कन्ध

Reference :
https://www.bhaktbhagwan.com/p/12-all-12-sections-of-entire-shrimad.html