Son of Doctor Esker's Notebook (The Sequel)

Hint
Small #1	334	638	430	386	352	207	414	403	153	313
Small #2	332	654	433	401	339	169	405	417	166	294
Small #3	296	634	400	408	354	157	391	405	147	281
Medium #1	327	662	397	402	295	143	391	439	148	298
Medium #2	308	639	342	384	293	143	355	437	139	305
Medium #3	314	653	307	381	237	134	338	441	140	273
Large #1	270	719	319	419	208	158	325	453	160	315
Large #2	252	681	280	423	248	153	285	429	149	296
Large #3	237	566	300	325	221	208	315	437	161	355

Return of Doctor Esker's Notebook (The Other Sequel)

Hint
Small #1	125	186	169	67	155	109	78	102	139	110
Small #2	116	178	162	61	163	103	77	99	139	109
Small #3	111	184	167	61	157	92	75	104	130	114
Medium #1	113	177	181	74	165	97	82	105	157	116
Medium #2	112	167	189	72	160	93	90	99	150	101
Medium #3	115	169	187	74	157	83	77	99	132	104
Large #1	116	176	208	79	168	77	76	101	108	124
Large #2	78	157	171	78	183	68	85	95	100	130
Large #3	75	160	162	96	154	72	73	68	71	124

Doctor Esker's Notebook IV: The Moroccan Affair
(The Other Other Sequel)

Hint
Small #1	22	20	27	52	46	50	32	58	70	23
Small #2	22	20	25	48	48	50	31	58	58	23
Small #3	19	19	24	48	45	62	28	56	65	26
Medium #1	20	17	25	55	46	58	30	55	64	27
Medium #2	16	13	25	55	40	46	27	52	66	20
Medium #3	13	13	26	43	37	42	30	47	71	22
Large #1	13	12	26	40	35	50	26	47	52	24
Large #2	10	12	27	31	25	39	22	42	34	23
Large #3	18	18	23	35	25	41	29	42	33	33

The hints are sorted by how much help they give you.
The last Large Hint on each page comes very close to just giving you the solution.