愛読[aidoku] reading with pleasure
愛読者[aidokusha] subscriber
愛読書[aidokusho] favourite book
暗号解読[angoukaidoku] cryptanalysis
一読[ichidoku] perusal

閲読[etsudoku] reading
音読[ondoku] reading aloud
音読み[onyomi] on (Chinese) reading of kanji
下読[shitayomi] preparatory reading
可読[kadoku] readable

購読[koudoku] paid subscription (e.g. magazine)
購読料[koudokuryou] subscription charge
購入[kounyuu] purchase
購入者[kounyuusha] purchaser
購入注文[kounyuuchuumon] purchase order

購買[koubai] procurement
購買力[koubairyoku] buying power
直接購入[chokusetsukounyuu] direct purchase
購う[aganau] to compensate
購入先[kounyuusaki] retailer