What's the difference between the second edition of Appreciation Dictionary (Classical Literature) published by Shanghai Dictionary Publishing House and the first edition?

Dictionary of pre-Qin poetry appreciation

A Dictionary of Poetry Appreciation in Han, Wei and Six Dynasties

A dictionary of Tang poetry appreciation

A dictionary of appreciation of Tang and Song Ci (Tang, Five Dynasties and Northern Song Dynasty)

A dictionary of appreciation of Tang and Song Ci (Nanjin).

Dictionary of Song Poetry Appreciation

Yuanqu Appreciation Dictionary

Dictionary of Poetry Appreciation in Yuan, Ming and Qing Dynasties (Liao, Jin, Yuan and Ming Dynasties).

A Dictionary of Poetry Appreciation in Yuan, Ming and Qing Dynasties (Qing and Modern Times)

A Dictionary of Poetry Appreciation in Yuan, Ming and Qing Dynasties

A Dictionary of Appreciation of Ci in Yuan, Ming and Qing Dynasties (Ⅰ)

Dictionary of appreciation of new poetry

Dictionary of Modern Prose Appreciation

Dictionary of Ancient Chinese Appreciation (Pre-Qin and Han Dynasties, Wei, Jin, Southern and Northern Dynasties, Sui and Tang Dynasties)

Dictionary of Ancient Chinese Appreciation (Song, Jin, Yuan, Ming and Qing Dynasties)

Dictionary of Appreciation of Ancient Novels (Pre-Qin and Han Dynasties, Wei, Jin, Southern and Northern Dynasties, Sui, Tang, Song, Liao, Jin and Yuan Dynasties)

Dictionary of Appreciation of Ancient Novels (Ming and Qing Dynasties) ...

Are you talking about these series? In fact, there is not much difference, but the content is updated and there are fewer obvious mistakes. It's all right to use the first edition.