Son of Doctor Esker's Notebook (The Sequel)

Hint
Small #1	330	621	422	381	347	204	408	396	150	307
Small #2	328	638	424	395	334	165	399	410	162	289
Small #3	292	621	393	402	348	154	386	399	144	276
Medium #1	323	649	390	396	289	142	388	433	145	293
Medium #2	303	626	337	378	288	143	353	431	136	300
Medium #3	310	641	303	376	234	134	335	435	137	269
Large #1	267	704	316	414	204	157	323	444	157	310
Large #2	249	666	277	416	244	152	283	422	147	292
Large #3	234	552	297	319	218	206	314	431	160	351

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

Hint
Small #1	118	184	162	66	151	104	76	99	135	107
Small #2	111	176	155	60	156	98	75	95	134	106
Small #3	106	182	159	60	151	87	73	99	126	111
Medium #1	108	173	173	73	157	91	80	100	152	111
Medium #2	107	163	181	71	154	89	88	94	146	96
Medium #3	110	165	179	73	150	79	77	95	128	99
Large #1	108	172	202	78	161	76	76	97	104	119
Large #2	70	153	166	77	176	66	85	92	97	126
Large #3	68	157	158	94	149	71	73	65	68	121

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

Hint
Small #1	22	19	26	52	45	49	31	55	69	21
Small #2	22	19	24	48	45	49	30	55	56	20
Small #3	19	18	23	48	43	61	26	53	62	23
Medium #1	20	17	24	55	46	55	29	52	61	24
Medium #2	16	13	24	55	40	43	26	50	63	17
Medium #3	13	13	25	43	37	40	28	46	67	19
Large #1	13	12	25	40	35	49	23	46	51	21
Large #2	10	12	26	31	25	38	20	42	34	20
Large #3	18	15	22	35	25	40	25	42	32	31

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.