▁significantly ▁those ▁in ▁the ▁pro log ue ▁where ▁Ch et ▁explains ▁his ▁motiv ations . ▁ ▁A ▁" New ▁Def init ive ▁Edition " ▁appeared ▁in ▁ 2 0 0 2 , ▁with ▁two ▁added ▁pages ▁of ▁context ual ▁end notes , ▁something ▁he ▁had ▁been ▁increasing ly ▁doing ▁from ▁ 1 9 9 5 ▁with ▁his ▁cart oon ▁ess ay ▁" My ▁M om ▁Was ▁a ▁Sch iz op hren ic ". ▁ ▁In ▁the ▁ 1 9 9 4 ▁collection ▁the ▁background s ▁were ▁black ; ▁he ▁changed ▁them ▁to ▁white ▁and ▁re arr anged ▁the ▁pan els ▁for ▁the ▁" New ▁Def init ive ▁Edition ". ▁ ▁He ▁explained : ▁" I ▁like ▁a uster ity . ▁The ▁white ▁background ▁looks ▁more ▁aust ere ▁to ▁me ." ▁ ▁The ▁edition ▁included ▁a ▁short ▁append ix ▁for ▁readers ▁" w onder ing ▁when ▁and ▁where ▁things ▁happened ". ▁ ▁Brown ▁announced ▁in ▁Louis ▁R iel ▁ 7 ▁a ▁recall ▁of ▁the ▁first ▁ 6 0 0 ▁copies ▁of ▁the ▁edition , ▁cit ing ▁that ▁the ▁paper ▁it ▁was ▁printed ▁on ▁was ▁too ▁transparent . ▁ ▁The ▁re called ▁copies ▁also ▁had ▁a ▁panel ▁ca ption ed ▁" I ▁decide ▁to ▁say ▁nothing "; ▁the ▁ca ption ▁did ▁not ▁appear ▁in ▁copies ▁that ▁were ▁not ▁re called . ▁ ▁Style ▁and ▁analysis ▁ ▁Academ ic ▁Charles ▁Hat field ▁finds ▁" an ▁ab iding ▁interest ▁in ▁the ▁ways ▁people ▁are ▁sh aped ▁by ▁their ▁environment " ▁in ▁Brown ' s ▁aut obi ographical