Ezi zihleli ngoHarold W. Percival zimela iqoqo epheleleyo epapashwe kuyo Ilizwi phakathi kowe-1904 no-1917. Ngoku ngaphezu kweminyaka elikhulu kamva, anqabile amaphephancwadi aphuma kanye ngenyanga. Iiseti ezidityanisiweyo zemiqulu yamashumi amabini anesihlanu zeLizwi ziphethwe ngabaqokeleli abambalwa kunye namathala eencwadi kwihlabathi jikelele. Ngexesha incwadi yokuqala kaMnu Percival, UkuCinga nokuPhelela, yapapashwa ngowe-1946, wayevelise isigama esitsha sokudlulisela iziphumo zengcinga yakhe. Oku kuchaza ubukhulu becala into esenokubonakala ingumahluko phakathi kwemisebenzi yakhe yangaphambili neyamva.

Xa uthotho lokuqala lwe Ilizwi yaphela, uHarold W. Percival wathi: “Eyona njongo iphambili yemibhalo yam yayikukuzisa abafundi ekuqondeni nasekuxatyisweni kwesifundo seConsciousness, nokukhuthaza abo bakhetha ukuphaphela iConsciousness …” Ngoku izizukulwana ezitsha zabafundi. uneendlela ezininzi zokufikelela kolu lwazi. Onke ama-editorial ePercival anokufundwa ngezantsi kweli phepha lewebhu. Zikwadityanisiwe zaba yimiqulu emibini emikhulu kwaye zilungelelaniswe ngezihloko zaba ziincwadi ezincinci ezilishumi elinesibhozo. Zonke ziyafumaneka njengee-paperbacks kunye ne-e-books.