Non-Fiction, >4.30, >100 votes

101.
The American Heritage Dictionary of the English Language
The American Heritage Dictionary of the English Language 4.40 avg rating — 738 ratings
102.
The Synonym Finder
The Synonym Finder 4.54 avg rating — 567 ratings
103.
Brewer's Dictionary of Phrase and Fable
Brewer's Dictionary of Phrase and Fable 4.41 avg rating — 922 ratings
104.
The Cambridge Encyclopedia of the English Language
The Cambridge Encyclopedia of the English Language 4.32 avg rating — 800 ratings
105.
The Ants
The Ants 4.60 avg rating — 834 ratings
106.
The Sibley Guide to Bird Life & Behavior
The Sibley Guide to Bird Life & Behavior 4.47 avg rating — 1,154 ratings
107.
Calculus
Calculus 4.52 avg rating — 982 ratings
108.
Information Theory, Inference, and Learning Algorithms
Information Theory, Inference, and Learning Algorithms 4.52 avg rating — 481 ratings
109.
Probability Theory: The Logic of Science
Probability Theory: The Logic of Science 4.41 avg rating — 648 ratings
110.
The Elements of Statistical Learning: Data Mining, Inference, and Prediction
The Elements of Statistical Learning: Data Mining, Inference, and Prediction 4.43 avg rating — 1,867 ratings
111.
Conquistadors of the Useless
Conquistadors of the Useless 4.32 avg rating — 1,484 ratings
112.
The Art of The Empire Strikes Back
The Art of The Empire Strikes Back 4.39 avg rating — 903 ratings
113.
Obsessed with Star Wars
Obsessed with Star Wars 4.32 avg rating — 330 ratings
114.
The Compact Edition of the Oxford English Dictionary, 2 Vols w/Reading Glass
The Compact Edition of the Oxford English Dictionary, 2 Vols w/Reading Glass 4.63 avg rating — 242 ratings
115.
The Oxford English Dictionary (20 Vol. Set in 5 boxes)
The Oxford English Dictionary (20 Vol. Set in 5 boxes) 4.71 avg rating — 221 ratings
116.
American Dictionary of the English Language
American Dictionary of the English Language 4.63 avg rating — 262 ratings
117.
Merriam-Webster's Dictionary of English Usage
Merriam-Webster's Dictionary of English Usage 4.44 avg rating — 188 ratings
118.
Oxford Atlas of the World
Oxford Atlas of the World 4.40 avg rating — 373 ratings
119.
Garner's Modern American Usage
Garner's Modern American Usage 4.60 avg rating — 1,064 ratings
120.
Oxford Advanced Learner's Dictionary
Oxford Advanced Learner's Dictionary 4.35 avg rating — 1,220 ratings
121.
Merriam-Webster's Vocabulary Builder
Merriam-Webster's Vocabulary Builder 4.47 avg rating — 707 ratings
122.
Writing Science: How to Write Papers That Get Cited and Proposals That Get Funded
Writing Science: How to Write Papers That Get Cited and Proposals That Get Funded 4.43 avg rating — 808 ratings
123.
History: The Definitive Visual Guide
History: The Definitive Visual Guide 4.47 avg rating — 587 ratings
124.
Science: The Definitive Visual Guide
Science: The Definitive Visual Guide 4.52 avg rating — 341 ratings
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