These thematic pictures of dzīvnieki are analogous to a visual dictionary. The theme "dzīvnieki" splits into several parts. For children, especially toddlers from 1 to 5 years old, it is better to divide the sets of cards over several days, or even weeks, so the information is absorbed better. Especially it is true if you are using flashcards to learn the latvian language, which is not your native language.
To expand your latvian language vocabulary on the "dzīvnieki" topic, flashcards games are the best way: