The Shafi'i tradition is particularly accessible to English speaking Muslims due to the availability of high quality translations of the Reliance of the Traveler.
The Shafi'i school of fiqh is named after it's "founder": Muhammad ibn Idris ibn al-`Abbas, al-Imam al-Shafi`i, Abu `Abd Allah al-Shafi`i al-Hijazi al-Qurashi al-Hashimi al-Muttalibi (better known as Imam Shafi).