Complex sentence: It is the first of the "Fudge books" and was followed by "Superfudge", "Fudge-a-Mania", and most recently by "Double Fudge".
Split into simpler sentences: It is the first of the "Fudge books". It was followed by "Superfudge", "Fudge-a-Mania", and most recently by "Double Fudge".