Haben oder sein vs I'm OK, you're OK: Which Should You Read?

Cover of Haben oder sein Haben oder sein Erich Fromm · 1976 ★★★★☆ 4.2 209 pages · ≈ 3 h 52 m · Challenging Find on Amazon
vs
Cover of I'm OK, you're OK I'm OK, you're OK Thomas Anthony Harris · 1969 ★★★★☆ 3.8 282 pages · ≈ 5 h 13 m · Moderate Find on Amazon

The verdict

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Haben oder seinI'm OK, you're OKEnjoymentDifficultyInfluencePopularityClassic
Psychoanalytic TherapyPsychotherapyPsychology