Ibn Juzayy's Al-Tasheel is a "concentration" of Tafsir. If you want the essence of the Qur'anic message explained with the eloquence of the Andalusian scholars, this is the book to download or purchase.
For further reading or to verify the text's contents, digital versions and summaries are available via Scribd or scholarly repositories like Marifa . Ibn Juzayy Al-kalbi Tafsir Pdf